IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Persistence via KDE AutoStart Script or Desktop File Modification
editPersistence via KDE AutoStart Script or Desktop File Modification
editIdentifies the creation or modification of a K Desktop Environment (KDE) AutoStart script or desktop file that will execute upon each user logon. Adversaries may abuse this method for persistence.
Rule type: eql
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
- https://userbase.kde.org/System_Settings/Autostart
- https://www.amnesty.org/en/latest/research/2020/09/german-made-finspy-spyware-found-in-egypt-and-mac-and-linux-versions-revealed/
- https://www.intezer.com/blog/research/operation-electrorat-attacker-creates-fake-companies-to-drain-your-crypto-wallets/
Tags:
- Elastic
- Host
- Linux
- Threat Detection
- Persistence
Version: 2
Rule authors:
- Elastic
Rule license: Elastic License v2
Investigation guide
edit## Config If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
Rule query
editfile where event.type != "deletion" and
file.extension in ("sh", "desktop") and
file.path :
(
"/home/*/.config/autostart/*", "/root/.config/autostart/*",
"/home/*/.kde/Autostart/*", "/root/.kde/Autostart/*",
"/home/*/.kde4/Autostart/*", "/root/.kde4/Autostart/*",
"/home/*/.kde/share/autostart/*", "/root/.kde/share/autostart/*",
"/home/*/.kde4/share/autostart/*", "/root/.kde4/share/autostart/*",
"/home/*/.local/share/autostart/*", "/root/.local/share/autostart/*",
"/home/*/.config/autostart-scripts/*", "/root/.config/autostart-scripts/*",
"/etc/xdg/autostart/*", "/usr/share/autostart/*"
)
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Boot or Logon Autostart Execution
- ID: T1547
- Reference URL: https://attack.mitre.org/techniques/T1547/