""ET TROJAN [ANY.RUN] NjRat (tXRAT v.2.3R) Client Sends Check-in Packet""
SID: 2053792
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_06_21, deployment Perimeter, malware_family njrat, confidence High, signature_severity Critical, tag RAT, updated_at 2024_07_23
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: established,to_server
Contents:
- Value: "tXInfoClient|7c|" Depth: 20 Offset: 3
Within:
PCRE: "/^\d{2,4}\x00/"
Special Options:
- fast_pattern