""ET TROJAN Sidecopy APT Backdoor Related Activity (POST)""

SID: 2035558

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_03_22, deployment Perimeter, deployment SSLDecrypt, malware_family SideCopy, signature_severity Major, updated_at 2022_03_22

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST /logs_files HTTP/1.1"

Within:

PCRE: "/^Host[^\r\n]+\r\nContent-Length[^\r\n]+\r\nExpect[^\r\n]+\r\nConnection[^\r\n]+\r\n\r\n$/Hm"

Special Options:

  • fast_pattern

source