New linux malware rules

Create Maldoc_DDE.yar

A lot of false positives.
https://github.com/Yara-Rules/rules/issues/252

It's a rule with a lot of false positives. We have to find a solution for this rule. By now this rule is commented.

Create MALW_PyPI

Create MALW_Virut_FileInfector_UNK_VERSION.yar

Update WildNeutron

chickenkiller is dynamic DNS, not WildNeutron specific.

Thanks!
moving rule maldoc_OLE_file_magic_number to utils/magic.yar

Update RANSOM_MS17-010_Wannacrypt.yar

Update APT_APT10.yar

fixed typos in original PR

Create MALW_adwind_RAT.yar

from https://minerva-labs.com/post/adwind-and-other-evasive-java-rats

Adding Rule https://www.cylance.com/en_us/blog/the-deception-project-a-new-japanese-centric-threat.html

Adding rule from Cylance https://www.cylance.com/en_us/blog/threat-spotlight-inside-the-wannacry-attack.html

Create RANSOM_DoublePulsar_Petya.yar

Booz Allen Hamilton YARA rule on Petya from https://www.boozallen.com/s/insight/publication/the-petya-ransomware-outbreak.html

Email_generic_phishing