""ET TROJAN Operation Interception Beacon""
SID: 2030356
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2020_06_18, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_06_18, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel
Reference:
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md5
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851a4f13928a5edb3859a21a8041908e
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: "|20|/start.html|20|"
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Value: "Accept|3a 20|text/html,application/xhtml+xml,application/xml|3b|q=0.9,image/webp,image/apng,/|3b|q=0.8,application/signed-exchange|3b|v=b3|0d 0a|"
Within:
PCRE: "/Host[^\r\n]+\r\nUpgrade-Insecure-Requests[^\r\n]+\r\nUser-Agent[^\r\n]+\r\nAccept[^\r\n]+\r\nAccept-Encoding[^\r\n]+\r\nAccept-Language[^\r\n]+\r\n(?:\r\n)?/H"
Special Options:
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http_method
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http_header