alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Malicious JAR olig"; flow:established,from_server; content:"|00 00|META-INF/PK|0a|"; fast_pattern; content:"|00|olig/"; classtype:trojan-activity; sid:2012646; rev:3; metadata:created_at 2011_04_07, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)