""ET TROJAN [eSentire] VBS Retrieving Malicious Payload""

SID: 2025626

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_06_25, deployment Perimeter, signature_severity Major, updated_at 2020_11_10

Reference:

  • md5

  • aa56a1de9b91446c66d53f12f797bef5

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "HEAD"

  • Value: ".php1"

  • Value: "User-Agent|3a 20|Microsoft BITS/"

  • Value: !"Referer|3a|"

Within:

PCRE: "/\/[0-9]{10}.php1$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source