""ET TROJAN Win32/Colibri Loader Activity M2""

SID: 2035107

Revision: 2

Class Type: trojan-activity

Metadata: created_at 2022_02_05, updated_at 2022_02_05

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"

  • Value: ".php?type=ping&uid="

  • Value: !"Mozilla"

  • Value: !"Opera"

  • Value: !"Safari"

  • Value: "Content-Length|3a 20|0|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nContent-Length\x3a\x20[^\r\n]+\r\n/Hm"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

source