""ET TROJAN Win32/Backdoor.Agent.qweydh CnC Activity""

SID: 2025172

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 2017_12_22, deployment Perimeter, performance_impact Moderate, signature_severity Major, updated_at 2017_12_22

Reference:

• md5

• 5dcc10711305c0bd4c8290eaae660ef3

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: ".php?mac="

• Value: !"Accept"

• Value: !"User-Agent|3a|"

• Value: !"Referer|3a|"

Within:

PCRE: "/.php\?mac=[0-9A-F]{12}$/U"

Special Options:

• http_uri

• fast_pattern

• http_header

• http_header

• http_header

source