""ET TROJAN Cobalt Strike Malleable C2 (Meterpreter)""
SID: 2029742
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_03_26, deployment Perimeter, malware_family Cobalt_Strike, malware_family Cobalt_Strike, signature_severity Major, updated_at 2020_03_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: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET|20|/ucD"
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Value: "|20|HTTP/1.1"
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Value: "GET"
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Value: "/ucD" Depth: 4
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Value: !"Referer|3a|"
Within: 9
PCRE: "/^\/ucD[A-Za-z0-9_\/-+]{171}$/Us"
Special Options:
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fast_pattern
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http_method
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http_uri
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http_header