""ET TROJAN Teslarvng Ransomware CnC Activity M3""

SID: 2033018

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 2021_05_24, deployment Perimeter, malware_family Ouroboros, signature_severity Major, tag Ransomware, updated_at 2021_05_24, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • d26e609c77e314fc3f242a736c323ab6

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|00 00|encrypted|20|local|20|size|20 3a|"

  • Value: "|0d 0a|Encrypted|20|Network|20|size|20 3a|"

Within:

PCRE:

Special Options:

  • nocase

  • fast_pattern

  • nocase

source