Sign in Get started

Back to results

MediumSigmaHQ Roberto Rodriguez (Cyb3rWard0g) +1

CredUI.DLL Loaded By Uncommon Process

Detects loading of "credui.dll" and related DLLs by an uncommon process. Attackers might leverage this DLL for potential use of "CredUIPromptForCredentials" or "CredUnPackAuthenticationBufferW".

Detection logic

Detection requirements

Platform: Linux macOS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: windows
Log source category: image_load

Known benign triggers

Other legitimate processes loading those DLLs in your environment.

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
github.com/S12cybersecurity/RDPCredentialStealer	Tool	Only this detection cites it
github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1056.002/T1056.002.md#atomic-test-2---powershell---prompt-user-for-password	Detection test	3from 2 sources
learn.microsoft.com/en-us/windows/win32/api/wincred/nf-wincred-creduipromptforcredentialsa	Product documentation	Only this detection cites it
securitydatasets.com/notebooks/atomic/windows/credential_access/SDWIN-201020013208.html	Unclassified	Only this detection cites it

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice