""ET MALWARE Win32/InstallCore.GF CnC Activity""

SID: 2030798

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 2020_08_26, deployment Perimeter, malware_family InstallCore, signature_severity Minor, updated_at 2020_08_26

Reference:

  • md5

  • 37cbc5d7eaa9ce6a097950aa051080b5

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|NSISDL/1.2 (Mozilla)|0d 0a|"

  • Value: "GET /installer/configs/" Depth: 23

  • Value: " HTTP/1.0|0d 0a|"

Within: 15

PCRE:

Special Options:

  • http_header

  • fast_pattern

source