""ET TROJAN Win32/Avaddon Ransomware Style External IP Address Check""

SID: 2030253

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 2020_06_05, deployment Perimeter, deployment SSLDecrypt, malware_family Avaddon, signature_severity Major, tag Ransomware, updated_at 2020_06_05, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

  • md5

  • c9ec0d9ff44f445ce5614cc87398b38d

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "User-Agent|3a 20|WinInet|0d 0a|Host|3a 20|api.myip.com|0d 0a 0d 0a|" Depth: 43

  • Value: !"Referer"

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • fast_pattern

  • http_header

source