Versions (6)
Version DetailsCurrent
Rev: 5 • Apr 17, 2012, 12:00 PMET MALWARE Win32/Nitol.B Checkin
alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Nitol.B Checkin"; flow:from_client,established; dsize:536<>1029; content:"|01 00 00 00|"; depth:4; content:!"|26|"; within:1; content:"|26|"; distance:1; within:1; content:"|26|"; distance:61; within:1; content:"|26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26|"; distance:204; within:20; content:"|26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26 26|"; distance:12; within:20; classtype:command-and-control; sid:2014601; rev:5; metadata:created_at 2012_04_17, malware_family Win32_Nitol_B, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_19;)
Apr 17, 2012, 12:00 PM
Aug 19, 2020, 12:00 PM
Sep 21, 2024, 3:00 AM
Oct 1, 2025, 9:34 PM
rules/emerging-malware.rules