""ET TROJAN W32/Dridex POST CnC Beacon""
SID: 2019891
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2014_12_08, deployment Perimeter, malware_family Dridex, signature_severity Major, tag c2, updated_at 2017_05_17, 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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d37256439d5ab7f25561cc390d8aa1ea
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 8080
Flow: established,to_server
Contents:
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Value: "POST"
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Value: "User-Agent|3A| Mozilla/5.0 (Windows NT 6.1|3B| Trident/7.0|3B| rv|3A|11.0) like Gecko|0d 0a|"
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Value: "Connection|3a 20|Close|0d 0a|"
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Value: "Content-Type|3a 20|octet/binary|0d 0a|"
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Value: !"Referer|3A|"
Within:
PCRE: "/^Host\x3a\s*?\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}(?:\x3a\d{1,5})?\r?$/Hmi"
Special Options:
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http_method
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http_header
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http_header
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http_header
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http_header