""ET TROJAN Pult Downloader Activity""

SID: 2032525

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_04_06, deployment Perimeter, deployment SSLDecrypt, malware_family DonotGroup, performance_impact Low, signature_severity Major, updated_at 2021_04_06

Reference:

• Link

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "|0d 0a|User-Agent|3a 20|UserAgent|3a|Mozilla/5.0|20|(Windows|20|NT|20|6.1|3b 20|"

Within:

PCRE:

Special Options:

• fast_pattern

• http_header

source