Versions (4)
Version DetailsCurrent
Rev: 3 • Feb 18, 2022, 12:00 PMET MALWARE Gamaredon APT Related Maldoc Activity (GET)
alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Gamaredon APT Related Maldoc Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/prevent/counter.dot"; endswith; fast_pattern; http.header_names; content:!"Referer"; http.user_agent; content:"|3b 20|ms-office|3b 20|"; reference:url,www.anomali.com/blog/primitive-bear-gamaredon-targets-ukraine-with-timely-themes; reference:md5,5db3abc526fc334034f30e988a10c02a; classtype:trojan-activity; sid:2035221; rev:3; metadata:attack_target Client_Endpoint, created_at 2022_02_18, deployment Perimeter, deprecation_reason Age, malware_family Gamaredon, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_25, reviewed_at 2023_08_25;)
Feb 18, 2022, 12:00 PM
Aug 25, 2023, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 5, 2025, 9:34 PM
rules/emerging-malware.rules