SID: 2038619

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_08_25, deployment Perimeter, malware_family Grandoreiro, signature_severity Major, updated_at 2022_09_13

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "|2f 24|TIME"

  • Value: "|28|compatible|3b 20|Clever|20|Internet|20|Suite|29 0d 0a|"

Within:

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

Special Options:

  • http_method

  • http_uri

  • http_header

  • fast_pattern

source