Synopsis
Activation Period |
14 Days |
Training Period |
30 Days |
Test Period |
N/A (single event) |
Deduplication Period |
1 Day |
Required Data |
|
Detection Modules |
|
Detector Tags |
Malicious Service Analytics |
ATT&CK Tactic |
|
ATT&CK Technique |
|
Severity |
Low |
Description
A service was added as a dll, which will be executed by svchost.exe. This is a stealthy technique attackers use to persist their malware.
Attacker's Goals
Masquerade execution on the host using a benign Windows process and achieve persistence.
Investigative actions
- Investigate the suspicious DLL and check for malicious content.
- Go to the service registry key and investigate it to find the associated executable that runs the service.
- Check whether the executing process is benign, and if this was a desired behavior as part of its normal execution flow.
Variations
Rare service DLL was added to the registry from an injected threadRare service DLL was added to the registry from a rare unsigned actor process