""ET TROJAN Observed DNS Query to Known Fenrir Ransomware CnC Domain""
SID: 2024467
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_07_13, deployment Perimeter, malware_family Ransomware, malware_family Fenrir, signature_severity Major, tag Ransomware, updated_at 2019_08_28, 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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a5ecf27bfab7fbb1ace3ec9a390b23bd
Protocol: udp
Source Network: $HOME_NET
Source Port: any
Destination Network: any
Destination Port: 53
Flow:
Contents:
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Value: "|01|" Depth: 1 Offset: 2
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Value: "|00 01 00 00 00 00 00|"
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Value: "|11|fenrir-ransomware|0d|000webhostapp|03|com|00|"
Within: 7
PCRE:
Special Options:
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nocase
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fast_pattern