""ET TROJAN Win32/Upgilf CnC Beacon""
SID: 2036993
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2016_05_05, deployment Perimeter, signature_severity Major, tag c2, updated_at 2016_05_05, 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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c049f2884bf2dfca9496f075216af431
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: established,to_server
Contents:
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Value: "GET /" Depth: 5
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Value: "2E"
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Value: "2E"
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Value: "2E"
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Value: "HTTP/1."
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Value: !"Accept"
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Value: !"Referer|3a|"
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Value: "|0d 0a|User-Agent|3a 20|"
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Value: "Windows NT"
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Value: "00000000000000000000"
Within: 14
PCRE: "/^GET \/[A-F0-9]+\x20HTTP\/1./"
Special Options: