Detection rules › Sigma
Triple Cross eBPF Rootkit Default Persistence
Detects the creation of "ebpfbackdoor" files in both "cron.d" and "sudoers.d" directories. Which both are related to the TripleCross persistence method
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1053.003 Scheduled Task/Job: Cron |
| Persistence | T1053.003 Scheduled Task/Job: Cron |
| Privilege Escalation | T1053.003 Scheduled Task/Job: Cron |
Event coverage
| Provider | Event |
|---|---|
| Sysmon-for-Linux | Event ID 11 |
Rule body yaml
title: Triple Cross eBPF Rootkit Default Persistence
id: 1a2ea919-d11d-4d1e-8535-06cda13be20f
status: test
description: Detects the creation of "ebpfbackdoor" files in both "cron.d" and "sudoers.d" directories. Which both are related to the TripleCross persistence method
references:
- https://github.com/h3xduck/TripleCross/blob/12629558b8b0a27a5488a0b98f1ea7042e76f8ab/apps/deployer.sh
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-07-05
modified: 2022-12-31
tags:
- attack.privilege-escalation
- attack.execution
- attack.persistence
- attack.t1053.003
logsource:
product: linux
category: file_event
detection:
selection:
TargetFilename|endswith: 'ebpfbackdoor'
condition: selection
falsepositives:
- Unlikely
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
TargetFilename|endswith: 'ebpfbackdoor'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
TargetFilename | ends_with |
|