Versions (4)
Version DetailsCurrent
Rev: 2 • Jan 7, 2016, 12:00 PMET MALWARE ELF.MrBlack DOS.TF Variant
alert tcp $HOME_NET any -> $EXTERNAL_NET 1024: (msg:"ET MALWARE ELF.MrBlack DOS.TF Variant"; flow:established,to_server; content:"Linux_"; offset:8; depth:6; content:"TF-"; distance:58; within:3; fast_pattern; reference:url,blog.malwaremustdie.org/2016/01/mmd-0048-2016-ddostf-new-elf-windows.html; classtype:trojan-activity; sid:2022336; rev:2; metadata:created_at 2016_01_07, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)
Jan 7, 2016, 12:00 PM
Jul 26, 2019, 12:00 PM
Sep 21, 2024, 3:00 AM
Nov 20, 2025, 12:34 AM
rules/emerging-malware.rules