WPS Office Exploitation via DLL Hijack

Last updated 5 months ago on 2025-03-20
Created a year ago on 2024-08-29

About

Identifies the load of a remote library by the WPS Office promecefpluginhost.exe executable. This may indicate the successful exploitation of CVE-2024-7262 or CVE-2024-7263 via DLL hijack abusing the ksoqing custom protocol handler.
Tags
Domain: EndpointOS: WindowsUse Case: Threat DetectionTactic: Initial AccessTactic: ExecutionData Source: Elastic DefendData Source: SysmonLanguage: eql
Severity
high
Risk Score
73
MITRE ATT&CK™

Execution (TA0002)(opens in a new tab or window)

Initial Access (TA0001)(opens in a new tab or window)

License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Event Correlation Rule
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
logs-endpoint.events.library-*logs-windows.sysmon_operational-*
Related Integrations

endpoint(opens in a new tab or window)

windows(opens in a new tab or window)

Query
any where host.os.type == "windows" and process.name : "promecefpluginhost.exe" and
(
 (event.category == "library" and
  ?dll.path :
     ("?:\\Users\\*\\AppData\\Local\\Temp\\wps\\INetCache\\*",
      "\\Device\\Mup\\**", "\\\\*")) or

  ((event.category == "process" and event.action : "Image loaded*") and
  ?file.path :
     ("?:\\Users\\*\\AppData\\Local\\Temp\\wps\\INetCache\\*",
      "\\Device\\Mup\\**", "\\\\*"))
)

Install detection rules in Elastic Security

Detect WPS Office Exploitation via DLL Hijack in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).