""ET TROJAN Cobalt Strike Activity (POST)""
SID: 2035376
Revision: 3
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_03_02, deployment Perimeter, malware_family Cobalt_Strike, signature_severity Major, updated_at 2022_04_18, reviewed_at 2024_06_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation
Reference:
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: "POST"
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Value: "/jquery-3.3.2.min.js?__cfduid=" Depth: 30
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Value: "Referer|3a 20|http|3a|//code.jquery.com/|0d 0a|"
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Value: "Mozilla/5.0 (Windows NT 6.3|3b 20|Trident/7.0|3b 20|rv:11.0) like Gecko"
Within:
PCRE: "/^User-Agent\x3a\x20Mozilla\/5.0 (Windows NT 6.3\x3b\x20Trident\/7.0\x3b\x20rv:11.0) like Gecko/Hmi"
Special Options:
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http_method
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http_uri
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fast_pattern
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http_header
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http_header