""ET TROJAN Cobalt Strike Activity (GET)""
SID: 2034540
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_11_23, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, signature_severity Major, updated_at 2021_11_23, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation
Reference:
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md5
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36be5b491426de64f9ac85c50f85808c
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "/image/" Depth: 7
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Value: "Accept|3a 20|text/html,application/xhtml+xml,application/xml|3b|q=0.9,/l|3b|q=0.8|0d 0a|"
Within:
PCRE: "/\/image\/[a-z]{256}.gif$/U"
Special Options:
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http_method
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http_uri
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http_header
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fast_pattern