HighSigmaHQ Nasreddine Bencherchali (Nextron Systems) +4

Mshtml.DLL RunHTMLApplication Suspicious Usage

Detects execution of commands that leverage the "mshtml.dll" RunHTMLApplication export to run arbitrary code via different protocol handlers (vbscript, javascript, file, http...)

Detection logic

Detection requirements

Log source product: windows
Log source category: process_creation

Known benign triggers

Unlikely

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
hyp3rlinx.altervista.org/advisories/MICROSOFT_WINDOWS_DEFENDER_DETECTION_BYPASS.txt	Unclassified	2from 2 sources
hyp3rlinx.altervista.org/advisories/MICROSOFT_WINDOWS_DEFENDER_TROJAN.WIN32.POWESSERE.G_MITIGATION_BYPASS_PART2.txt	Unclassified	2from 2 sources
twitter.com/n1nj4sec/status/1421190238081277959	Social post	2from 2 sources

Detection rules

Mshtml.DLL RunHTMLApplication Suspicious Usage

Detection logic

Detection requirements

Known benign triggers

MITRE ATT&CK mappings

References

From the source

Licence

Authorship

Detection rules