SID: 2037927

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_08_04, deployment Perimeter, deployment SSLDecrypt, malware_family RedGuard, signature_severity Major, updated_at 2022_08_04

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "User-Agent|3a 20|Mozilla/5.0 (Windows NT 10.0|3b 20|Win64|3b 20|x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36|0d 0a|"

Within:

PCRE: "/User-Agent[^\r\n]+\r\nAccept[^\r\n]+\r\nRedGuard[^\r\n]+\r\ncharset[^\r\n]+\r\n/Hm"

Special Options:

  • http_header

source