""ET TROJAN Possible OSX/SHLAYER Checkin M2""

SID: 2038613

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Mac_OSX, attack_target Client_Endpoint, created_at 2022_08_25, deployment Perimeter, malware_family Shlayer, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2022_08_25

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/rga?a=" Depth: 7

  • Value: "&b="

  • Value: "User-Agent|3a 20|Go-http-client/1.1"

Within: 10

PCRE: "/^Host\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nAccept-Encoding\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_header

source