""ET TROJAN Criptobit/Mobef Ransomware Checkin""
SID: 2022845
Revision: 3
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2016_05_31, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2016_06_07, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact
Reference:
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md5
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c90a8039f330ba6660a91113f6c53685
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: to_server,established
Contents:
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Value: "GET"
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Value: ".php?a="
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Value: "User-Agent|3a 20|Mozilla/5.0 (Windows NT 10.0|3b 20|Win64|3b 20|x64) Edge/13.10586|0d 0a|"
Within:
PCRE: "/.php\?a=\d{5,10}.+\x3a\d\x3a\d\x3a\d.\d\x3a\d$/U"
Special Options:
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http_method
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http_uri
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http_header