""ET TROJAN [ANY.RUN] Win32/ObserverStealer CnC Response""

SID: 2046155

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_06_07, deployment Perimeter, malware_family ObserverStealer, confidence High, signature_severity Critical, updated_at 2023_06_07

Reference:

• Link

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

• Value: "gecko|3b|chromium|3b|download|3b|grabbers|3b|extensions|3b|processGrabber|3b|dll|3b|" Depth: 63

• Value: "|0d 0d 0a 0a 0a|Firefox|0a 25|USERPROFILE|25|"

Within:

PCRE:

Special Options:

• file_data

source