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SID: 2032354 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2Mar 30, 2021, 12:00 PM

ET MALWARE Cobalt Strike Beacon (Bing Profile)

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Cobalt Strike Beacon (Bing Profile)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/search/?q="; startswith; content:"&go=Search&qs=bs&form="; distance:0; fast_pattern; http.cookie; content:"DUP="; startswith; content:"&T="; distance:0; content:"&A="; distance:0; content:"&IG"; endswith; http.header_names; content:!"Referer"; reference:url,twitter.com/TheDFIRReport/status/1376878123061551104; reference:md5,18b0ca0508f92c5ac6e75b9865b77a51; classtype:trojan-activity; sid:2032354; rev:2; metadata:attack_target Client_Endpoint, created_at 2021_03_30, deployment Perimeter, confidence Medium, signature_severity Major, tag c2, updated_at 2022_03_24, reviewed_at 2023_08_22, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)

Mar 30, 2021, 12:00 PM

Mar 24, 2022, 12:00 PM

Sep 21, 2024, 3:00 AM

May 30, 2025, 12:04 AM

rules/emerging-malware.rules