""ET TROJAN Win32/Wacatac Ransomware Variant Retrieving File (GET)""

SID: 2037129

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_06_27, deployment Perimeter, signature_severity Major, tag Ransomware, updated_at 2022_06_27, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

• md5

• 1a209343e0eb93a07c0da41ef5c93ab0

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: ".onion|0d 0a|"

• Value: "GET /decryptor-gui.exe HTTP/1.1"

• Value: "/payment-registration|0d 0a|"

Within:

PCRE: "/^Referer\x3a\x20[^\r\n]+\/payment-registration/Hmi"

Special Options:

• http_header

• fast_pattern

• http_header

source