/*
This Yara ruleset is under the GNU-GPLv2 license (http://www.gnu.org/licenses/gpl-2.0.html) and open to any user or organization, as long as you use it under this license.
*/
import "pe"
rule tran_duy_linh
{
meta:
author = "@patrickrolsen"
maltype = "Misc."
version = "0.2"
reference = "8fa804105b1e514e1998e543cd2ca4ea, 872876cfc9c1535cd2a5977568716ae1, etc."
date = "01/03/2014"
strings:
$doc = {D0 CF 11 E0} //DOCFILE0
$string1 = "Tran Duy Linh" fullword
$string2 = "DLC Corporation" fullword
condition:
($doc at 0) and (all of ($string*))
}
rule misc_iocs
{
meta:
author = "@patrickrolsen"
maltype = "Misc."
version = "0.1"
reference = "N/A"
strings:
$doc = {D0 CF 11 E0} //DOCFILE0
$s1 = "dw20.exe"
$s2 = "cmd /"
condition:
($doc at 0) and (1 of ($s*))
}
rule malicious_LNK_files
{
meta:
author = "@patrickrolsen"
strings:
$magic = {4C 00 00 00 01 14 02 00} // L.......
$s1 = "\\RECYCLER\\" wide
$s2 = "%temp%" wide
$s3 = "%systemroot%\\system32\\cmd.exe" wide
//$s4 = "./start" wide
$s5 = "svchost.exe" wide
$s6 = "lsass.exe" wide
$s7 = "csrss.exe" wide
$s8 = "winlogon.exe" wide
//$s9 = "%cd%" wide
$s10 = "%appdata%" wide
$s11 = "%programdata%" wide
$s12 = "%localappdata%" wide
$s13 = ".cpl" wide
condition:
($magic at 0) and any of ($s*)
}
rule memory_pivy
{
meta:
author = "https://github.com/jackcr/"
strings:
$a = {00 00 00 00 00 00 00 00 00 00 00 53 74 75 62 50 61 74 68 00} // presence of pivy in memory
condition:
any of them
}
rule memory_shylock
{
meta:
author = "https://github.com/jackcr/"
strings:
$a = /pipe\\[A-F0-9]{32}/ //Named pipe created by the malware
$b = /id=[A-F0-9]{32}/ //Portion or the uri beacon
$c = /MASTER_[A-F0-9]{32}/ //Mutex created by the malware
$d = "***Load injects by PIPE (%s)" //String found in binary
$e = "***Load injects url=%s (%s)" //String found in binary
$f = "*********************** Ping Ok ************************" //String found in binary
$g = "*** LOG INJECTS *** %s" //String found in binary
condition:
any of them
}
rule ScanBox_Malware_Generic {
meta:
description = "Scanbox Chinese Deep Panda APT Malware http://goo.gl/MUUfjv and http://goo.gl/WXUQcP"
author = "Florian Roth"
reference1 = "http://goo.gl/MUUfjv"
reference2 = "http://goo.gl/WXUQcP"
date = "2015/02/28"
hash1 = "8d168092d5601ebbaed24ec3caeef7454c48cf21366cd76560755eb33aff89e9"
hash2 = "d4be6c9117db9de21138ae26d1d0c3cfb38fd7a19fa07c828731fa2ac756ef8d"
hash3 = "3fe208273288fc4d8db1bf20078d550e321d9bc5b9ab80c93d79d2cb05cbf8c2"
strings:
/* Sample 1 */
$s0 = "http://142.91.76.134/p.dat" fullword ascii
$s1 = "HttpDump 1.1" fullword ascii
/* Sample 2 */
$s3 = "SecureInput .exe" fullword wide
$s4 = "http://extcitrix.we11point.com/vpn/index.php?ref=1" fullword ascii
/* Sample 3 */
$s5 = "%SystemRoot%\\System32\\svchost.exe -k msupdate" fullword ascii
$s6 = "ServiceMaix" fullword ascii
/* Certificate and Keywords */
$x1 = "Management Support Team1" fullword ascii
$x2 = "DTOPTOOLZ Co.,Ltd.0" fullword ascii
$s3 = "SEOUL1" fullword ascii
condition:
( 1 of ($s*) and 2 of ($x*) ) or
( 3 of ($x*) )
}
rule TrojanDownloader {
meta:
description = "Trojan Downloader - Flash Exploit Feb15"
author = "Florian Roth"
reference = "http://goo.gl/wJ8V1I"
date = "2015/02/11"
hash = "5b8d4280ff6fc9c8e1b9593cbaeb04a29e64a81e"
score = 60
strings:
$x1 = "Hello World!" fullword ascii
$x2 = "CONIN$" fullword ascii
$s6 = "GetCommandLineA" fullword ascii
$s7 = "ExitProcess" fullword ascii
$s8 = "CreateFileA" fullword ascii
$s5 = "SetConsoleMode" fullword ascii
$s9 = "TerminateProcess" fullword ascii
$s10 = "GetCurrentProcess" fullword ascii
$s11 = "UnhandledExceptionFilter" fullword ascii
$s3 = "user32.dll" fullword ascii
$s16 = "GetEnvironmentStrings" fullword ascii
$s2 = "GetLastActivePopup" fullword ascii
$s17 = "GetFileType" fullword ascii
$s19 = "HeapCreate" fullword ascii
$s20 = "VirtualFree" fullword ascii
$s21 = "WriteFile" fullword ascii
$s22 = "GetOEMCP" fullword ascii
$s23 = "VirtualAlloc" fullword ascii
$s24 = "GetProcAddress" fullword ascii
$s26 = "FlushFileBuffers" fullword ascii
$s27 = "SetStdHandle" fullword ascii
$s28 = "KERNEL32.dll" fullword ascii
condition:
$x1 and $x2 and ( all of ($s*) ) and filesize < 35000
}
rule Embedded_EXE_Cloaking {
meta:
description = "Detects an embedded executable in a non-executable file"
author = "Florian Roth"
date = "2015/02/27"
score = 80
strings:
$noex_png = { 89 50 4E 47 }
$noex_pdf = { 25 50 44 46 }
$noex_rtf = { 7B 5C 72 74 66 31 }
$noex_jpg = { FF D8 FF E0 }
$noex_gif = { 47 49 46 38 }
$mz = { 4D 5A }
$a1 = "This program cannot be run in DOS mode"
$a2 = "This program must be run under Win32"
condition:
(
( $noex_png at 0 ) or
( $noex_pdf at 0 ) or
( $noex_rtf at 0 ) or
( $noex_jpg at 0 ) or
( $noex_gif at 0 )
)
and
for any i in (1..#mz): ( @a1 < ( @mz[i] + 200 ) or @a2 < ( @mz[i] + 200 ) )
}
rule Cloaked_as_JPG {
meta:
description = "Detects a cloaked file as JPG"
author = "Florian Roth (eval section from Didier Stevens)"
date = "2015/02/29"
score = 70
strings:
$ext = "extension: .jpg"
condition:
$ext and uint16be(0x00) != 0xFFD8
}
rule WindowsCredentialEditor
{
meta:
description = "Windows Credential Editor" threat_level = 10 score = 90
strings:
$a = "extract the TGT session key"
$b = "Windows Credentials Editor"
condition:
$a or $b
}
rule Amplia_Security_Tool
{
meta:
description = "Amplia Security Tool"
score = 60
nodeepdive = 1
strings:
$a = "Amplia Security"
$b = "Hernan Ochoa"
$c = "getlsasrvaddr.exe"
$d = "Cannot get PID of LSASS.EXE"
$e = "extract the TGT session key"
$f = "PPWDUMP_DATA"
condition: 1 of them
}
rule perlbot_pl {
meta:
description = "Semi-Auto-generated - file perlbot.pl.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "7e4deb9884ffffa5d82c22f8dc533a45"
strings:
$s0 = "my @adms=(\"Kelserific\",\"Puna\",\"nod32\")"
$s1 = "#Acesso a Shel - 1 ON 0 OFF"
condition:
1 of them
}
rule php_backdoor_php {
meta:
description = "Semi-Auto-generated - file php-backdoor.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "2b5cb105c4ea9b5ebc64705b4bd86bf7"
strings:
$s0 = "http://michaeldaw.org 2006"
$s1 = "or http://<? echo $SERVER_NAME.$REQUEST_URI; ?>?d=c:/windows on win"
$s3 = "coded by z0mbie"
condition:
1 of them
}
rule Liz0ziM_Private_Safe_Mode_Command_Execuriton_Bypass_Exploit_php {
meta:
description = "Semi-Auto-generated - file Liz0ziM Private Safe Mode Command Execuriton Bypass Exploit.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "c6eeacbe779518ea78b8f7ed5f63fc11"
strings:
$s0 = "<option value=\"cat /var/cpanel/accounting.log\">/var/cpanel/accounting.log</opt"
$s1 = "Liz0ziM Private Safe Mode Command Execuriton Bypass"
$s2 = "echo \"<b><font color=red>Kimim Ben :=)</font></b>:$uid<br>\";" fullword
condition:
1 of them
}
rule Nshell__1__php_php {
meta:
description = "Semi-Auto-generated - file Nshell (1).php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "973fc89694097a41e684b43a21b1b099"
strings:
$s0 = "echo \"Command : <INPUT TYPE=text NAME=cmd value=\".@stripslashes(htmlentities($"
$s1 = "if(!$whoami)$whoami=exec(\"whoami\"); echo \"whoami :\".$whoami.\"<br>\";" fullword
condition:
1 of them
}
rule shankar_php_php {
meta:
description = "Semi-Auto-generated - file shankar.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "6eb9db6a3974e511b7951b8f7e7136bb"
strings:
$sAuthor = "ShAnKaR"
$s0 = "<input type=checkbox name='dd' \".(isset($_POST['dd'])?'checked':'').\">DB<input"
$s3 = "Show<input type=text size=5 value=\".((isset($_POST['br_st']) && isset($_POST['b"
condition:
1 of ($s*) and $sAuthor
}
rule Casus15_php_php {
meta:
description = "Semi-Auto-generated - file Casus15.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "5e2ede2d1c4fa1fcc3cbfe0c005d7b13"
strings:
$s0 = "copy ( $dosya_gonder2, \"$dir/$dosya_gonder2_name\") ? print(\"$dosya_gonder2_na"
$s2 = "echo \"<center><font size='$sayi' color='#FFFFFF'>HACKLERIN<font color='#008000'"
$s3 = "value='Calistirmak istediginiz "
condition:
1 of them
}
rule small_php_php {
meta:
description = "Semi-Auto-generated - file small.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "fcee6226d09d150bfa5f103bee61fbde"
strings:
$s1 = "$pass='abcdef1234567890abcdef1234567890';" fullword
$s2 = "eval(gzinflate(base64_decode('FJzHkqPatkU/550IGnjXxHvv6bzAe0iE5+svFVGtKqXMZq05x1"
$s4 = "@ini_set('error_log',NULL);" fullword
condition:
2 of them
}
rule shellbot_pl {
meta:
description = "Semi-Auto-generated - file shellbot.pl.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "b2a883bc3c03a35cfd020dd2ace4bab8"
strings:
$s0 = "ShellBOT"
$s1 = "PacktsGr0up"
$s2 = "CoRpOrAtIoN"
$s3 = "# Servidor de irc que vai ser usado "
$s4 = "/^ctcpflood\\s+(\\d+)\\s+(\\S+)"
condition:
2 of them
}
rule fuckphpshell_php {
meta:
description = "Semi-Auto-generated - file fuckphpshell.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "554e50c1265bb0934fcc8247ec3b9052"
strings:
$s0 = "$succ = \"Warning! "
$s1 = "Don`t be stupid .. this is a priv3 server, so take extra care!"
$s2 = "\\*=-- MEMBERS AREA --=*/"
$s3 = "preg_match('/(\\n[^\\n]*){' . $cache_lines . '}$/', $_SESSION['o"
condition:
2 of them
}
rule ngh_php_php {
meta:
description = "Semi-Auto-generated - file ngh.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "c372b725419cdfd3f8a6371cfeebc2fd"
strings:
$s0 = "Cr4sh_aka_RKL"
$s1 = "NGH edition"
$s2 = "/* connectback-backdoor on perl"
$s3 = "<form action=<?=$script?>?act=bindshell method=POST>"
$s4 = "$logo = \"R0lGODlhMAAwAOYAAAAAAP////r"
condition:
1 of them
}
rule jsp_reverse_jsp {
meta:
description = "Semi-Auto-generated - file jsp-reverse.jsp.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "8b0e6779f25a17f0ffb3df14122ba594"
strings:
$s0 = "// backdoor.jsp"
$s1 = "JSP Backdoor Reverse Shell"
$s2 = "http://michaeldaw.org"
condition:
1 of them
}
rule Tool_asp {
meta:
description = "Semi-Auto-generated - file Tool.asp.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "8febea6ca6051ae5e2ad4c78f4b9c1f2"
strings:
$s0 = "mailto:rhfactor@antisocial.com"
$s2 = "?raiz=root"
$s3 = "DIGO CORROMPIDO<BR>CORRUPT CODE"
$s4 = "key = \"5DCADAC1902E59F7273E1902E5AD8414B1902E5ABF3E661902E5B554FC41902E53205CA0"
condition:
2 of them
}
rule NT_Addy_asp {
meta:
description = "Semi-Auto-generated - file NT Addy.asp.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "2e0d1bae844c9a8e6e351297d77a1fec"
strings:
$s0 = "NTDaddy v1.9 by obzerve of fux0r inc"
$s2 = "<ERROR: THIS IS NOT A TEXT FILE>"
$s4 = "RAW D.O.S. COMMAND INTERFACE"
condition:
1 of them
}
rule SimAttacker___Vrsion_1_0_0___priv8_4_My_friend_php {
meta:
description = "Semi-Auto-generated - file SimAttacker - Vrsion 1.0.0 - priv8 4 My friend.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "089ff24d978aeff2b4b2869f0c7d38a3"
strings:
$s0 = "SimAttacker - Vrsion : 1.0.0 - priv8 4 My friend"
$s3 = " fputs ($fp ,\"\\n*********************************************\\nWelcome T0 Sim"
$s4 = "echo \"<a target='_blank' href='?id=fm&fedit=$dir$file'><span style='text-decora"
condition:
1 of them
}
rule RemExp_asp {
meta:
description = "Semi-Auto-generated - file RemExp.asp.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "aa1d8491f4e2894dbdb91eec1abc2244"
strings:
$s0 = "<title>Remote Explorer</title>"
$s3 = " FSO.CopyFile Request.QueryString(\"FolderPath\") & Request.QueryString(\"CopyFi"
$s4 = "<td bgcolor=\"<%=BgColor%>\" title=\"<%=File.Name%>\"> <a href= \"showcode.asp?f"
condition:
2 of them
}
rule phvayvv_php_php {
meta:
description = "Semi-Auto-generated - file phvayvv.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "35fb37f3c806718545d97c6559abd262"
strings:
$s0 = "{mkdir(\"$dizin/$duzenx2\",777)"
$s1 = "$baglan=fopen($duzkaydet,'w');"
$s2 = "PHVayv 1.0"
condition:
1 of them
}
rule klasvayv_asp {
meta:
description = "Semi-Auto-generated - file klasvayv.asp.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "2b3e64bf8462fc3d008a3d1012da64ef"
strings:
$s1 = "set aktifklas=request.querystring(\"aktifklas\")"
$s2 = "action=\"klasvayv.asp?klasorac=1&aktifklas=<%=aktifklas%>&klas=<%=aktifklas%>"
$s3 = "<font color=\"#858585\">www.aventgrup.net"
$s4 = "style=\"BACKGROUND-COLOR: #95B4CC; BORDER-BOTTOM: #000000 1px inset; BORDER-LEFT"
condition:
1 of them
}
rule r57shell_php_php {
meta:
description = "Semi-Auto-generated - file r57shell.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "d28445de424594a5f14d0fe2a7c4e94f"
strings:
$s0 = "r57shell" fullword
$s1 = " else if ($HTTP_POST_VARS['with'] == \"lynx\") { $HTTP_POST_VARS['cmd']= \"lynx "
$s2 = "RusH security team"
$s3 = "'ru_text12' => 'back-connect"
condition:
1 of them
}
rule rst_sql_php_php {
meta:
description = "Semi-Auto-generated - file rst_sql.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "0961641a4ab2b8cb4d2beca593a92010"
strings:
$s0 = "C:\\tmp\\dump_"
$s1 = "RST MySQL"
$s2 = "http://rst.void.ru"
$s3 = "$st_form_bg='R0lGODlhCQAJAIAAAOfo6u7w8yH5BAAAAAAALAAAAAAJAAkAAAIPjAOnuJfNHJh0qtfw0lcVADs=';"
condition:
2 of them
}
rule wh_bindshell_py {
meta:
description = "Semi-Auto-generated - file wh_bindshell.py.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "fab20902862736e24aaae275af5e049c"
strings:
$s0 = "#Use: python wh_bindshell.py [port] [password]"
$s2 = "python -c\"import md5;x=md5.new('you_password');print x.hexdigest()\"" fullword
$s3 = "#bugz: ctrl+c etc =script stoped=" fullword
condition:
1 of them
}
rule lurm_safemod_on_cgi {
meta:
description = "Semi-Auto-generated - file lurm_safemod_on.cgi.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "5ea4f901ce1abdf20870c214b3231db3"
strings:
$s0 = "Network security team :: CGI Shell" fullword
$s1 = "#########################<<KONEC>>#####################################" fullword
$s2 = "##if (!defined$param{pwd}){$param{pwd}='Enter_Password'};##" fullword
condition:
1 of them
}
rule c99madshell_v2_0_php_php {
meta:
description = "Semi-Auto-generated - file c99madshell_v2.0.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "d27292895da9afa5b60b9d3014f39294"
strings:
$s2 = "eval(gzinflate(base64_decode('HJ3HkqNQEkU/ZzqCBd4t8V4YAQI2E3jvPV8/1Gw6orsVFLyXef"
condition:
all of them
}
rule backupsql_php_often_with_c99shell {
meta:
description = "Semi-Auto-generated - file backupsql.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "ab1a06ab1a1fe94e3f3b7f80eedbc12f"
strings:
$s2 = "//$message.= \"--{$mime_boundary}\\n\" .\"Content-Type: {$fileatt_type};\\n\" ."
$s4 = "$ftpconnect = \"ncftpput -u $ftp_user_name -p $ftp_user_pass -d debsender_ftplog"
condition:
all of them
}
rule uploader_php_php {
meta:
description = "Semi-Auto-generated - file uploader.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "0b53b67bb3b004a8681e1458dd1895d0"
strings:
$s2 = "move_uploaded_file($userfile, \"entrika.php\"); " fullword
$s3 = "Send this file: <INPUT NAME=\"userfile\" TYPE=\"file\">" fullword
$s4 = "<INPUT TYPE=\"hidden\" name=\"MAX_FILE_SIZE\" value=\"100000\">" fullword
condition:
2 of them
}
rule telnet_pl {
meta:
description = "Semi-Auto-generated - file telnet.pl.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "dd9dba14383064e219e29396e242c1ec"
strings:
$s0 = "W A R N I N G: Private Server"
$s2 = "$Message = q$<pre><font color=\"#669999\"> _____ _____ _____ _____ "
condition:
all of them
}
rule w3d_php_php {
meta:
description = "Semi-Auto-generated - file w3d.php.php.txt"
author = "Neo23x0 Yara BRG + customization by Stefan -dfate- Molls"
hash = "987f66b29bfb209a0b4f097f84f57c3b"
strings:
$s0 = "W3D Shell"
$s1 = "By: Warpboy"
$s2 = "No Query Executed"
condition:
2 of them
}
rule rtf_yahoo_ken
{
meta:
author = "@patrickrolsen"
maltype = "Yahoo Ken"
filetype = "RTF"
version = "0.1"
description = "Test rule"
date = "2013-12-14"
strings:
$magic1 = { 7b 5c 72 74 30 31 } // {\rt01
$magic2 = { 7b 5c 72 74 66 31 } // {\rtf1
$magic3 = { 7b 5c 72 74 78 61 33 } // {\rtxa3
$author1 = { 79 61 68 6f 6f 20 6b 65 63 } // "yahoo ken"
condition:
($magic1 or $magic2 or $magic3 at 0) and $author1
}
rule ZXProxy
{
meta:
author = "ThreatConnect Intelligence Research Team"
strings:
$C = "\\Control\\zxplug" nocase wide ascii
$h = "http://www.facebook.com/comment/update.exe" wide ascii
$S = "Shared a shell to %s:%s Successfully" nocase wide ascii
condition:
any of them
}
rule OrcaRAT
{
meta:
Author = "PwC Cyber Threat Operations"
Date = "2014/10/20"
Description = "Strings inside"
Reference = "http://pwc.blogs.com/cyber_security_updates/2014/10/orcarat-a-whale-of-a-tale.html"
strings:
$MZ = "MZ"
$apptype1 = "application/x-ms-application"
$apptype2 = "application/x-ms-xbap"
$apptype3 = "application/vnd.ms-xpsdocument"
$apptype4 = "application/xaml+xml"
$apptype5 = "application/x-shockwave-flash"
$apptype6 = "image/pjpeg"
$err1 = "Set return time error = %d!"
$err2 = "Set return time success!"
$err3 = "Quit success!"
condition:
$MZ at 0 and filesize < 500KB and (all of ($apptype*) and 1 of ($err*))
}
rule EmiratesStatement
{
meta:
Author = "Christiaan Beek"
Date = "2013-06-30"
Description = "Credentials Stealing Attack"
Reference = "https://blogs.mcafee.com/mcafee-labs/targeted-campaign-steals-credentials-in-gulf-states-and-caribbean"
hash0 = "0e37b6efe5de1cc9236017e003b1fc37"
hash1 = "a28b22acf2358e6aced43a6260af9170"
hash2 = "6f506d7adfcc2288631ed2da37b0db04"
hash3 = "8aebade47dc1aa9ac4b5625acf5ade8f"
strings:
$string0 = "msn.klm"
$string1 = "wmsn.klm"
$string2 = "bms.klm"
condition:
all of them
}
rule PUP_InstallRex_AntiFWb {
meta:
description = "Malware InstallRex / AntiFW"
author = "Florian Roth"
date = "2015-05-13"
hash = "bb5607cd2ee51f039f60e32cf7edc4e21a2d95cd"
score = 65
strings:
$s4 = "Error %u while loading TSU.DLL %ls" fullword ascii
$s7 = "GetModuleFileName() failed => %u" fullword ascii
$s8 = "TSULoader.exe" fullword wide
$s15 = "\\StringFileInfo\\%04x%04x\\Arguments" fullword wide
$s17 = "Tsu%08lX.dll" fullword wide
condition:
uint16(0) == 0x5a4d and all of them
}
rule LightFTP_fftp_x86_64 {
meta:
description = "Detects a light FTP server"
author = "Florian Roth"
reference = "https://github.com/hfiref0x/LightFTP"
date = "2015-05-14"
hash1 = "989525f85abef05581ccab673e81df3f5d50be36"
hash2 = "5884aeca33429830b39eba6d3ddb00680037faf4"
score = 50
strings:
$s1 = "fftp.cfg" fullword wide
$s2 = "220 LightFTP server v1.0 ready" fullword ascii
$s3 = "*FTP thread exit*" fullword wide
$s4 = "PASS->logon successful" fullword ascii
$s5 = "250 Requested file action okay, completed." fullword ascii
condition:
uint16(0) == 0x5a4d and filesize < 250KB and 4 of them
}
rule LightFTP_Config {
meta:
description = "Detects a light FTP server - config file"
author = "Florian Roth"
reference = "https://github.com/hfiref0x/LightFTP"
date = "2015-05-14"
hash = "ce9821213538d39775af4a48550eefa3908323c5"
strings:
$s2 = "maxusers=" wide
$s6 = "[ftpconfig]" fullword wide
$s8 = "accs=readonly" fullword wide
$s9 = "[anonymous]" fullword wide
$s10 = "accs=" fullword wide
$s11 = "pswd=" fullword wide
condition:
uint16(0) == 0xfeff and filesize < 1KB and all of them
}
rule SpyGate_v2_9
{
meta:
date = "2014/09"
maltype = "Spygate v2.9 Remote Access Trojan"
filetype = "exe"
reference = "https://blogs.mcafee.com/mcafee-labs/middle-east-developer-spygate-struts-stuff-online"
strings:
$1 = "shutdowncomputer" wide
$2 = "shutdown -r -t 00" wide
$3 = "blockmouseandkeyboard" wide
$4 = "ProcessHacker"
$5 = "FileManagerSplit" wide
condition:
all of them
}
rule PythoRAT
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/PythoRAT"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "TKeylogger"
$b = "uFileTransfer"
$c = "TTDownload"
$d = "SETTINGS"
$e = "Unknown" wide
$f = "#@#@#"
$g = "PluginData"
$i = "OnPluginMessage"
condition:
all of them
}
rule CN_Toolset_sig_1433_135_sqlr {
meta:
description = "Detects a Chinese hacktool from a disclosed toolset - file sqlr.exe"
author = "Florian Roth"
reference = "http://qiannao.com/ls/905300366/33834c0c/"
reference2 = "https://raw.githubusercontent.com/Neo23x0/Loki/master/signatures/thor-hacktools.yar"
date = "2015/03/30"
score = 70
hash = "8542c7fb8291b02db54d2dc58cd608e612bfdc57"
strings:
$s0 = "Connect to %s MSSQL server success. Type Command at Prompt." fullword ascii
$s11 = ";DATABASE=master" fullword ascii
$s12 = "xp_cmdshell '" fullword ascii
$s14 = "SELECT * FROM OPENROWSET('SQLOLEDB','Trusted_Connection=Yes;Data Source=myserver" ascii
condition:
all of them
}
rule VirusRat
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/VirusRat"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$string0 = "virustotal"
$string1 = "virusscan"
$string2 = "abccba"
$string3 = "pronoip"
$string4 = "streamWebcam"
$string5 = "DOMAIN_PASSWORD"
$string6 = "Stub.Form1.resources"
$string7 = "ftp://{0}@{1}" wide
$string8 = "SELECT * FROM moz_logins" wide
$string9 = "SELECT * FROM moz_disabledHosts" wide
$string10 = "DynDNS\\Updater\\config.dyndns" wide
$string11 = "|BawaneH|" wide
condition:
all of them
}
rule ice_ix_12xy : banker
{
meta:
author = "Jean-Philippe Teissier / @Jipe_"
description = "ICE-IX 1.2.x.y trojan banker"
date = "2013-01-12"
filetype = "memory"
version = "1.0"
strings:
$regexp1= /bn1=.{32}&sk1=[0-9a-zA-Z]{32}/
$a = "bn1="
$b = "&sk1="
$c = "mario" //HardDrive GUID artifact
$d = "FIXME"
$e = "RFB 003.003" //VNC artifact
$ggurl = "http://www.google.com/webhp"
condition:
$regexp1 or ($a and $b) or all of ($c,$d,$e,$ggurl)
}
rule qadars : banker
{
meta:
author = "Jean-Philippe Teissier / @Jipe_"
description = "Qadars - Mobile part. Maybe Perkele."
version = "1.0"
filetype = "memory"
ref1 = "http://www.lexsi-leblog.fr/cert/qadars-nouveau-malware-bancaire-composant-mobile.html"
strings:
$cmd1 = "m?D"
$cmd2 = "m?S"
$cmd3 = "ALL"
$cmd4 = "FILTER"
$cmd5 = "NONE"
$cmd6 = "KILL"
$cmd7 = "CANCEL"
$cmd8 = "SMS"
$cmd9 = "DIVERT"
$cmd10 = "MESS"
$nofilter = "nofilter1111111"
$botherderphonenumber1 = "+380678409210"
condition:
all of ($cmd*) or $nofilter or any of ($botherderphonenumber*)
}
rule shylock : banker
{
meta:
author = "Jean-Philippe Teissier / @Jipe_"
description = "Shylock Banker"
date = "2013-12-12"
version = "1.0"
ref1 = "http://iocbucket.com/iocs/1b4660d57928df5ca843c21df0b2adb117026cba"
ref2 = "http://www.trusteer.com/blog/merchant-fraud-returns-%E2%80%93-shylock-polymorphic-financial-malware-infections-rise"
ref3 = "https://www.csis.dk/en/csis/blog/3811/"
strings:
$process1 = "MASTER"
$process2 = "_SHUTDOWN"
$process3 = "EVT_VNC"
$process4 = "EVT_BACK"
$process5 = "EVT_VNC"
$process6 = "IE_Hook::GetRequestInfo"
$process7 = "FF_Hook::getRequestInfo"
$process8 = "EX_Hook::CreateProcess"
$process9 = "hijackdll.dll"
$process10 = "MTX_"
$process11 = "FF::PR_WriteHook entry"
$process12 = "FF::PR_WriteHook exit"
$process13 = "HijackProcessAttach::*** MASTER *** MASTER *** MASTER *** %s PID=%u"
$process14 = "HijackProcessAttach::entry"
$process15 = "FF::BEFORE INJECT"
$process16 = "FF::AFTER INJECT"
$process17 = "IE::AFTER INJECT"
$process18 = "IE::BEFORE INJECT"
$process19 = "*** VNC *** VNC *** VNC *** VNC *** VNC *** VNC *** VNC *** VNC *** VNC *** VNC *** %s"
$process20 = "*** LOG INJECTS *** %s"
$process21 = "*** inject to process %s not allowed"
$process22 = "*** BackSocks *** BackSocks *** BackSocks *** BackSocks *** BackSocks *** BackSocks *** BackSocks *** %s"
$process23 = ".?AVFF_Hook@@"
$process24 = ".?AVIE_Hook@@"
$process25 = "Inject::InjectDllFromMemory"
$process26 = "BadSocks.dll"
$domain1 = "extensadv.cc"
$domain2 = "topbeat.cc"
$domain3 = "brainsphere.cc"
$domain4 = "commonworldme.cc"
$domain5 = "gigacat.cc"
$domain6 = "nw-serv.cc"
$domain7 = "paragua-analyst.cc"
condition:
3 of ($process*) or any of ($domain*)
}
rule spyeye : banker
{
meta:
author = "Jean-Philippe Teissier / @Jipe_"
description = "SpyEye X.Y memory"
date = "2012-05-23"
version = "1.0"
filetype = "memory"
strings:
$spyeye = "SpyEye"
$a = "%BOTNAME%"
$b = "globplugins"
$c = "data_inject"
$d = "data_before"
$e = "data_after"
$f = "data_end"
$g = "bot_version"
$h = "bot_guid"
$i = "TakeBotGuid"
$j = "TakeGateToCollector"
$k = "[ERROR] : Omfg! Process is still active? Lets kill that mazafaka!"
$l = "[ERROR] : Update is not successfull for some reason"
$m = "[ERROR] : dwErr == %u"
$n = "GRABBED DATA"
condition:
$spyeye or (any of ($a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n))
}
rule spyeye_plugins : banker
{
meta:
author = "Jean-Philippe Teissier / @Jipe_"
description = "SpyEye X.Y Plugins memory"
date = "2012-05-23"
version = "1.0"
filetype = "memory"
strings:
$a = "webfakes.dll"
$b = "config.dat" //may raise some FP
$c = "collectors.txt"
$d = "webinjects.txt"
$e = "screenshots.txt"
$f = "billinghammer.dll"
$g = "block.dll" //may raise some FP
$h = "bugreport.dll" //may raise some FP
$i = "ccgrabber.dll"
$j = "connector2.dll"
$k = "creditgrab.dll"
$l = "customconnector.dll"
$m = "ffcertgrabber.dll"
$n = "ftpbc.dll"
$o = "rdp.dll" //may raise some FP
$p = "rt_2_4.dll"
$q = "socks5.dll" //may raise some FP
$r = "spySpread.dll"
$s = "w2chek4_4.dll"
$t = "w2chek4_6.dll"
condition:
any of them
}
rule callTogether_certificate
{
meta:
Author = "Fireeye Labs"
Date = "2014/11/03"
Description = "detects binaries signed with the CallTogether certificate"
Reference = "https://www.fireeye.com/blog/threat-research/2014/11/operation-poisoned-handover-unveiling-ties-between-apt-activity-in-hong-kongs-pro-democracy-movement.html"
strings:
$serial = { 45 21 56 C3 B3 FB 01 76 36 5B DB 5B 77 15 BC 4C }
$o = "CallTogether, Inc."
condition:
$serial and $o
}
rule qti_certificate
{
meta:
Author = "Fireeye Labs"
Date = "2014/11/03"
Description = "detects binaries signed with the QTI International Inc certificate"
Reference = "https://www.fireeye.com/blog/threat-research/2014/11/operation-poisoned-handover-unveiling-ties-between-apt-activity-in-hong-kongs-pro-democracy-movement.html"
strings:
$cn = "QTI International Inc"
$serial = { 2e df b9 fd cf a0 0c cb 5a b0 09 ee 3a db 97 b9 }
condition:
$cn and $serial
}
rule DownExecute_A
{
meta:
Author = "PwC Cyber Threat Operations :: @tlansec"
Date = "2015/04/27"
Description = "Malware is often wrapped/protected, best to run on memory"
Reference = "http://pwc.blogs.com/cyber_security_updates/2015/04/attacks-against-israeli-palestinian-interests.html"
strings:
$winver1 = "win 8.1"
$winver2 = "win Server 2012 R2"
$winver3 = "win Srv 2012"
$winver4 = "win srv 2008 R2"
$winver5 = "win srv 2008"
$winver6 = "win vsta"
$winver7 = "win srv 2003 R2"
$winver8 = "win hm srv"
$winver9 = "win Strg srv 2003"
$winver10 = "win srv 2003"
$winver11 = "win XP prof x64 edt"
$winver12 = "win XP"
$winver13 = "win 2000"
$pdb1 = "D:\\Acms\\2\\docs\\Visual Studio 2013\\Projects\\DownloadExcute\\DownloadExcute\\Release\\DownExecute.pdb"
$pdb2 = "d:\\acms\\2\\docs\\visual studio 2013\\projects\\downloadexcute\\downloadexcute\\downexecute\\json\\rapidjson\\writer.h"
$pdb3 = ":\\acms\\2\\docs\\visual studio 2013\\projects\\downloadexcute\\downloadexcute\\downexecute\\json\\rapidjson\\internal/stack.h"
$pdb4 = "\\downloadexcute\\downexecute\\"
$magic1 = "<Win Get Version Info Name Error"
$magic2 = "P@$sw0rd$nd"
$magic3 = "$t@k0v2rF10w"
$magic4 = "|*|123xXx(Mutex)xXx321|*|6-21-2014-03:06PM" wide
$str1 = "Download Excute" ascii wide fullword
$str2 = "EncryptorFunctionPointer %d"
$str3 = "%s\\%s.lnk"
$str4 = "Mac:%s-Cpu:%s-HD:%s"
$str5 = "feed back responce of host"
$str6 = "GET Token at host"
$str7 = "dwn md5 err"
condition:
all of ($winver*) or any of ($pdb*) or any of ($magic*) or 2 of ($str*)
}
rule CN_Toolset__XScanLib_XScanLib_XScanLib {
meta:
description = "Detects a Chinese hacktool from a disclosed toolset - from files XScanLib.dll, XScanLib.dll, XScanLib.dll"
author = "Florian Roth"
reference = "http://qiannao.com/ls/905300366/33834c0c/"
reference2 = "https://raw.githubusercontent.com/Neo23x0/Loki/master/signatures/thor-hacktools.yar"
date = "2015/03/30"
score = 70
super_rule = 1
hash0 = "af419603ac28257134e39683419966ab3d600ed2"
hash1 = "c5cb4f75cf241f5a9aea324783193433a42a13b0"
hash2 = "135f6a28e958c8f6a275d8677cfa7cb502c8a822"
strings:
$s1 = "Plug-in thread causes an exception, failed to alert user." fullword
$s2 = "PlugGetUdpPort" fullword
$s3 = "XScanLib.dll" fullword
$s4 = "PlugGetTcpPort" fullword
$s11 = "PlugGetVulnNum" fullword
condition:
all of them
}
rule CN_Toolset_NTscan_PipeCmd {
meta:
description = "Detects a Chinese hacktool from a disclosed toolset - file PipeCmd.exe"
author = "Florian Roth"
reference = "http://qiannao.com/ls/905300366/33834c0c/"
reference2 = "https://raw.githubusercontent.com/Neo23x0/Loki/master/signatures/thor-hacktools.yar"
date = "2015/03/30"
score = 70
hash = "a931d65de66e1468fe2362f7f2e0ee546f225c4e"
strings:
$s2 = "Please Use NTCmd.exe Run This Program." fullword ascii
$s3 = "PipeCmd.exe" fullword wide
$s4 = "\\\\.\\pipe\\%s%s%d" fullword ascii
$s5 = "%s\\pipe\\%s%s%d" fullword ascii
$s6 = "%s\\ADMIN$\\System32\\%s%s" fullword ascii
$s7 = "%s\\ADMIN$\\System32\\%s" fullword ascii
$s9 = "PipeCmdSrv.exe" fullword ascii
$s10 = "This is a service executable! Couldn't start directly." fullword ascii
$s13 = "\\\\.\\pipe\\PipeCmd_communicaton" fullword ascii
$s14 = "PIPECMDSRV" fullword wide
$s15 = "PipeCmd Service" fullword ascii
condition:
4 of them
}
rule CN_Toolset_LScanPortss_2 {
meta:
description = "Detects a Chinese hacktool from a disclosed toolset - file LScanPortss.exe"
author = "Florian Roth"
reference = "http://qiannao.com/ls/905300366/33834c0c/"
reference2 = "https://raw.githubusercontent.com/Neo23x0/Loki/master/signatures/thor-hacktools.yar"
date = "2015/03/30"
score = 70
hash = "4631ec57756466072d83d49fbc14105e230631a0"
strings:
$s1 = "LScanPort.EXE" fullword wide
$s3 = "www.honker8.com" fullword wide
$s4 = "DefaultPort.lst" fullword ascii
$s5 = "Scan over.Used %dms!" fullword ascii
$s6 = "www.hf110.com" fullword wide
$s15 = "LScanPort Microsoft " fullword wide
$s18 = "L-ScanPort2.0 CooFly" fullword wide
condition:
4 of them
}
rule CVE_2015_1674_CNGSYS {
meta:
description = "Detects exploits for CVE-2015-1674"
author = "Florian Roth"
reference = "http://www.binvul.com/viewthread.php?tid=508"
reference2 = "https://github.com/Neo23x0/Loki/blob/master/signatures/exploit_cve_2015_1674.yar"
date = "2015-05-14"
hash = "af4eb2a275f6bbc2bfeef656642ede9ce04fad36"
strings:
$s1 = "\\Device\\CNG" fullword wide
$s2 = "GetProcAddress" fullword ascii
$s3 = "LoadLibrary" ascii
$s4 = "KERNEL32.dll" fullword ascii
$s5 = "ntdll.dll" fullword ascii
condition:
uint16(0) == 0x5a4d and filesize < 60KB and all of them
}
rule Ap0calypse
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/Ap0calypse"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "Ap0calypse"
$b = "Sifre"
$c = "MsgGoster"
$d = "Baslik"
$e = "Dosyalars"
$f = "Injecsiyon"
condition:
all of them
}
rule Arcom
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/Arcom"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a1 = "CVu3388fnek3W(3ij3fkp0930di"
$a2 = "ZINGAWI2"
$a3 = "clWebLightGoldenrodYellow"
$a4 = "Ancestor for '%s' not found" wide
$a5 = "Control-C hit" wide
$a6 = {A3 24 25 21}
condition:
all of them
}
rule Bandook
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/bandook"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "aaaaaa1|"
$b = "aaaaaa2|"
$c = "aaaaaa3|"
$d = "aaaaaa4|"
$e = "aaaaaa5|"
$f = "%s%d.exe"
$g = "astalavista"
$h = "givemecache"
$i = "%s\\system32\\drivers\\blogs\\*"
$j = "bndk13me"
condition:
all of them
}
rule Bozok
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/Bozok"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "getVer" nocase
$b = "StartVNC" nocase
$c = "SendCamList" nocase
$d = "untPlugin" nocase
$e = "gethostbyname" nocase
condition:
all of them
}
rule CyberGate
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/CyberGate"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$string1 = {23 23 23 23 40 23 23 23 23 E8 EE E9 F9 23 23 23 23 40 23 23 23 23}
$string2 = {23 23 23 23 40 23 23 23 23 FA FD F0 EF F9 23 23 23 23 40 23 23 23 23}
$string3 = "EditSvr"
$string4 = "TLoader"
$string5 = "Stroks"
$string6 = "####@####"
$res1 = "XX-XX-XX-XX"
$res2 = "CG-CG-CG-CG"
condition:
all of ($string*) and any of ($res*)
}
rule DarkRAT
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/DarkRAT"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "@1906dark1996coder@"
$b = "SHEmptyRecycleBinA"
$c = "mciSendStringA"
$d = "add_Shutdown"
$e = "get_SaveMySettingsOnExit"
$f = "get_SpecialDirectories"
$g = "Client.My"
condition:
all of them
}
rule Greame
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/Greame"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = {23 23 23 23 40 23 23 23 23 E8 EE E9 F9 23 23 23 23 40 23 23 23 23}
$b = {23 23 23 23 40 23 23 23 23 FA FD F0 EF F9 23 23 23 23 40 23 23 23 23}
$c = "EditSvr"
$d = "TLoader"
$e = "Stroks"
$f = "Avenger by NhT"
$g = "####@####"
$h = "GREAME"
condition:
all of them
}
rule LostDoor
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/LostDoor"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a0 = {0D 0A 2A 45 44 49 54 5F 53 45 52 56 45 52 2A 0D 0A}
$a1 = "*mlt* = %"
$a2 = "*ip* = %"
$a3 = "*victimo* = %"
$a4 = "*name* = %"
$b5 = "[START]"
$b6 = "[DATA]"
$b7 = "We Control Your Digital World" wide ascii
$b8 = "RC4Initialize" wide ascii
$b9 = "RC4Decrypt" wide ascii
condition:
all of ($a*) or all of ($b*)
}
rule LuxNet
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/LuxNet"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "GetHashCode"
$b = "Activator"
$c = "WebClient"
$d = "op_Equality"
$e = "dickcursor.cur" wide
$f = "{0}|{1}|{2}" wide
condition:
all of them
}
rule Pandora
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/Pandora"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "Can't get the Windows version"
$b = "=M=Q=U=Y=]=a=e=i=m=q=u=y=}="
$c = "JPEG error #%d" wide
$d = "Cannot assign a %s to a %s" wide
$g = "%s, ProgID:"
$h = "clave"
$i = "Shell_TrayWnd"
$j = "melt.bat"
$k = "\\StubPath"
$l = "\\logs.dat"
$m = "1027|Operation has been canceled!"
$n = "466|You need to plug-in! Double click to install... |"
$0 = "33|[Keylogger Not Activated!]"
condition:
all of them
}
rule Paradox
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/Paradox"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "ParadoxRAT"
$b = "Form1"
$c = "StartRMCam"
$d = "Flooders"
$e = "SlowLaris"
$f = "SHITEMID"
$g = "set_Remote_Chat"
condition:
all of them
}
rule Punisher
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/Punisher"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$a = "abccba"
$b = {5C 00 68 00 66 00 68 00 2E 00 76 00 62 00 73}
$c = {5C 00 73 00 63 00 2E 00 76 00 62 00 73}
$d = "SpyTheSpy" wide ascii
$e = "wireshark" wide
$f = "apateDNS" wide
$g = "abccbaDanabccb"
condition:
all of them
}
rule SmallNet
{
meta:
author = " Kevin Breen <kevin@techanarchy.net>"
date = "2014/04"
ref = "http://malwareconfig.com/stats/SmallNet"
maltype = "Remote Access Trojan"
filetype = "exe"
strings:
$split1 = "!!<3SAFIA<3!!"
$split2 = "!!ElMattadorDz!!"
$a1 = "stub_2.Properties"
$a2 = "stub.exe" wide
$a3 = "get_CurrentDomain"
condition:
($split1 or $split2) and (all of ($a*))
}
rule Base64_encoded_Executable {
meta:
description = "Detects an base64 encoded executable (often embedded)"
author = "Florian Roth"
date = "2015-05-28"
score = 50
strings:
$s1 = "TVpTAQEAAAAEAAAA//8AALgAAAA" // 14 samples in goodware archive
$s2 = "TVoAAAAAAAAAAAAAAAAAAAAAAAA" // 26 samples in goodware archive
$s3 = "TVqAAAEAAAAEABAAAAAAAAAAAAA" // 75 samples in goodware archive
$s4 = "TVpQAAIAAAAEAA8A//8AALgAAAA" // 168 samples in goodware archive
$s5 = "TVqQAAMAAAAEAAAA//8AALgAAAA" // 28,529 samples in goodware archive
condition:
1 of them
}
rule CredStealESY : For CredStealer
{
meta:
description = "Generic Rule to detect the CredStealer Malware"
author = "IsecG – McAfee Labs"
date = "2015/05/08"
strings:
$my_hex_string = "CurrentControlSet\\Control\\Keyboard Layouts\\" wide //malware trying to get keyboard layout
$my_hex_string2 = {89 45 E8 3B 7D E8 7C 0F 8B 45 E8 05 FF 00 00 00 2B C7 89 45 E8} //specific decryption module
condition:
$my_hex_string and $my_hex_string2
}
rule Mimikatz_Logfile
{
meta:
description = "Detects a log file generated by malicious hack tool mimikatz"
author = "Florian Roth"
score = 80
date = "2015/03/31"
reference = "https://github.com/Neo23x0/Loki/blob/master/signatures/thor-hacktools.yar"
strings:
$s1 = "SID :" ascii fullword
$s2 = "* NTLM :" ascii fullword
$s3 = "Authentication Id :" ascii fullword
$s4 = "wdigest :" ascii fullword
condition:
all of them
}