""ET TROJAN Locky Ransomware Writing Instructions via SMB""
SID: 2023148
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_09_01, deployment Perimeter, malware_family Ransomware, signature_severity Major, tag Ransomware, updated_at 2016_09_01, 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: [445,139]
Flow: to_server,established
Contents:
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Value: "|FE|SMB|40 00|" Depth: 6 Offset: 4
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Value: "|05 00|"
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Value: "|00|H|00|E|00|L|00|P|00||00|i|00|n|00|s|00|t|00|r|00|u|00|c|00|t|00|i|00|o|00|n|00|s|00|.|00|h|00|t|00|m|00|l"
Within: 2
PCRE:
Special Options:
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nocase
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fast_pattern