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 |
Global Anomaly Analytics, DLL Hijacking Analytics |
ATT&CK Tactic |
Defense Evasion (TA0005) |
ATT&CK Technique |
|
Severity |
Informational |
Description
A signed process loaded a DLL that, on a global level, it usually doesn't load.
Attacker's Goals
Attackers may use various methods to execute code from a context of a signed process to avoid detection.
Investigative actions
- Check if the actor process loaded a suspicious DLL before the alert.
- Check if the actor process was injected before the alert.
- Check if the process execution and connections are legitimate.
Variations
Globally uncommon image load from a signed process from a known vendor
Synopsis
Description
A signed process loaded a DLL that, on a global level, it usually doesn't load.
Attacker's Goals
Attackers may use various methods to execute code from a context of a signed process to avoid detection.
Investigative actions
- Check if the actor process loaded a suspicious DLL before the alert.
- Check if the actor process was injected before the alert.
- Check if the process execution and connections are legitimate.
Globally uncommon unsigned image side loaded to a signed process
Synopsis
Description
A signed process side loaded an unsigned DLL that, on a global level, it usually doesn't load.
Attacker's Goals
Attackers may use various methods to execute code from a context of a signed process to avoid detection.
Investigative actions
- Check if the actor process loaded a suspicious DLL before the alert.
- Check if the actor process was injected before the alert.
- Check if the process execution and connections are legitimate.
Globally uncommon and very rare image load from a signed process
Synopsis
Description
A signed process loaded a DLL that, on a global level, it usually doesn't load.
Attacker's Goals
Attackers may use various methods to execute code from a context of a signed process to avoid detection.
Investigative actions
- Check if the actor process loaded a suspicious DLL before the alert.
- Check if the actor process was injected before the alert.
- Check if the process execution and connections are legitimate.
Globally uncommon image load from an injected thread in a signed process
Synopsis
Description
An injected thread in a signed process loaded a DLL that, on a global level, it usually doesn't load.
Attacker's Goals
Attackers may use various methods to execute code from a context of a signed process to avoid detection.
Investigative actions
- Check if the actor process loaded a suspicious DLL before the alert.
- Check if the actor process was injected before the alert.
- Check if the process execution and connections are legitimate.