""ET MALWARE Fake Adobe Update Download""

SID: 2026734

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_12_17, deployment Perimeter, signature_severity Major, updated_at 2019_08_14

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "filename=readerdc"

  • Value: !"Server|3a 20| Apache"

  • Value: "Set-Cookie|3a 20|session="

Within:

PCRE: "/([a-z]{2}){1,3}[a-z]{3}_install.exe/Ri"

Special Options:

  • http_stat_code

  • fast_pattern

  • http_header

  • nocase

  • http_header

  • http_header

source