""ET TROJAN Win32/Valyria Maldoc Payload Request M1""

SID: 2042658

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 2022_12_12, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2022_12_12

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "/IMG"

• Value: ".exe"

• Value: "User-Agent|3a 20|Microsoft-CryptoAPI/"

• Value: !"|0d 0a|Referer|3a 20|"

Within:

PCRE: "/^Host\x3a\x20[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}$/Hm"

Special Options:

• http_uri

• fast_pattern

• http_uri

• http_header

• http_header

source