""ET TROJAN sysrv.ELF Exploit Success Payload Request""

SID: 2033094

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_06_04, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_06_04

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: "/ldr.sh"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/^User-Agent\x3a\x20(?:curl|wget)_?(?:c(?:ve_20(?:1(?:(?:7_1161|8_760)0|9_10758)|20_16846)|url_xxljobUnauth)|tp5)$/Hmi"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

source