""ET TROJAN Observed OSX/Silver Sparrow Download Domain in TLS SNI""
SID: 2031644
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2021_02_22, deployment Perimeter, signature_severity Major, updated_at 2021_02_22
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: 443
Flow: established,to_server
Contents:
- Value: "|00 00 1d|mobiletraits.s3.amazonaws.com|00|"
Within:
PCRE:
Special Options:
- fast_pattern