EIP-2026-119643

PRE-CVE

Microsoft Windows Defender Bypass - Detection Mitigation Bypass

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-119643. PoCs published by hyp3rlinx.

AI-analyzed exploit summary This exploit demonstrates a detection mitigation bypass for Windows Defender's Backdoor:JS/Relvelshe.A by using a JavaScript try-catch block and eval to execute a hex-encoded payload. The PoC leverages rundll32 to execute a malicious script hosted on a local server, bypassing defender detection.

Description

Microsoft Windows Defender Bypass - Detection Mitigation Bypass

Exploits (1)

exploitdb WORKING POC
by hyp3rlinx · textlocalwindows_x86-64
https://www.exploit-db.com/exploits/51801

This exploit demonstrates a detection mitigation bypass for Windows Defender's Backdoor:JS/Relvelshe.A by using a JavaScript try-catch block and eval to execute a hex-encoded payload. The PoC leverages rundll32 to execute a malicious script hosted on a local server, bypassing defender detection.

Classification
Working Poc 90%
Attack Type
Other
Complexity
Moderate
Reliability
Reliable
Target: Windows Defender
No auth needed
Prerequisites: Local server to host the malicious script · Administrator privileges to execute rundll32
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026