Rule History

alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Embedded Android Dalvik Executable File With Fake Windows Executable Header - Possible AV Bypass Attempt"; flow:established,to_client; file_data; content:"MZ"; within:2; content:"This program"; distance:0; content:"dex|0A|"; distance:0; reference:url,research.zscaler.com/2013/03/guess-who-am-i-pe-or-apk.html; classtype:trojan-activity; sid:2016854; rev:3; metadata:created_at 2013_05_16, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)