""ET TROJAN NewBot Loader CnC Checkin""

SID: 2051665

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_14, deployment Perimeter, malware_family NewBot_Loader, performance_impact Moderate, confidence High, signature_severity Major, tag NewBot_Loader, updated_at 2024_03_14

Reference:

  • md5

  • c3197c9638728736a0d0247a9cdc14c5

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|04 00 00 00|"

Offset: 24

  • Value: "|00 00 02 00 00 00 24|"

  • Value: "|18|Microsoft|20|Windows|20|"

Within: 150

PCRE:

Special Options:

  • fast_pattern

source