Versions (4)
Version DetailsCurrent
Rev: 1 • Nov 27, 2023, 12:00 PMET MALWARE DNS Query to SysJoker Domain (filestorage-short .org)
alert dns $HOME_NET any -> any any (msg:"ET MALWARE DNS Query to SysJoker Domain (filestorage-short .org)"; dns.query; dotprefix; content:".filestorage-short.org"; nocase; endswith; reference:url,research.checkpoint.com/2023/israel-hamas-war-spotlight-shaking-the-rust-off-sysjoker; reference:url,intezer.com/blog/research/wildcard-evolution-of-sysjoker-cyber-threat; classtype:trojan-activity; sid:2049297; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_11_27, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_11_27;)
Nov 27, 2023, 12:00 PM
Nov 27, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Aug 18, 2025, 8:35 PM
rules/emerging-malware.rules