""ET TROJAN Golang Easy Stealer Exfil (POST)""

SID: 2046690

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 2023_06_29, deployment Perimeter, confidence Medium, signature_severity Critical, updated_at 2023_10_25, reviewed_at 2024_01_26

Reference:

• md5

• 731ed24011df3a33fe5d3765bf424b0c

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "POST"

• Value: "/apache"

• Value: "User-Agent|3a 20|Go-http-client/1.1|0d 0a|"

• Value: "Accept-Encoding|3a 20|gzip"

• Value: "COntent-Type|3a 20|application/x-www-form-urlencoded"

Within:

PCRE: "/^(?:(?:[a-z0-9]{32}\x3d[A-Z]{2}\x26)(?:[a-z0-9]{32}\x3d)(?:[a-z0-9]{32})\x26(?:[a-z0-9]{32}\x3d))/P"

Special Options:

• http_method

• http_uri

• fast_pattern

• http_header

• http_header

• http_header

source