""ET TROJAN Observed Buran Ransomware UA""
SID: 2029176
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_12_16, deployment Perimeter, former_category MALWARE, signature_severity Major, tag Ransomware, updated_at 2020_10_27, 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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5a4384f5e18cfbd993a135301141243e
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: "User-Agent|3a 20 63 6f 63 6b 0d 0a|"
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Value: !"Referer"
Within:
PCRE:
Special Options:
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nocase
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http_header
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fast_pattern
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http_header