""ET TROJAN Win32.Crypren/Zcrypt Ransomware Checkin""
SID: 2022897
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2016_06_14, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2016_06_14, 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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7efb738c2b04aacdd3354d590cb3df47
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: ".php?computerid="
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Value: !"Referer|3a 20|"
Within:
PCRE: "/.php\?computerid=[a-fA-F0-9]{32}&(?:public|private)=\d$/U"
Special Options:
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http_uri
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http_header