""ET TROJAN Buran Ransomware Activity M2""
SID: 2027445
Revision: 3
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_06_10, deployment Perimeter, former_category MALWARE, malware_family Buran, signature_severity Major, tag Ransomware, updated_at 2022_05_03, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
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Value: "GET"
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Value: "User-Agent|3a 20|GHOST|0d 0a|"
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Value: "Referer|3a 20|"
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Value: "Referer|3a 20|"
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Value: !"Connection"
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Value: !"Cache"
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Value: !"Accept"
Within:
PCRE: "/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}\r\n\r\n$/Ri"
Special Options:
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http_method
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fast_pattern
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http_header
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http_header
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http_header
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http_header