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CVE-2023-52271 affects version 2.0.0.0 of a Topaz Antifraud Windows kernel driver. A low-privileged attacker can invoke a vulnerable IOCTL to terminate arbitrary processes, including those protected by Protected Process Light (PPL). Exploitation has been observed in bring-your-own-vulnerable-driver campaigns that use kernel-mode process termination to disable antivirus and endpoint-security software.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
Repository contains a small Windows C++ proof-of-concept exploit for CVE-2023-52271 targeting the Warsaw driver wsftprm.sys (noted in README as version 2.0.0.0). Structure is minimal: README.md (description/links) and main.cpp (the exploit). main.cpp implements a local, driver-based process-killing tool: it enumerates running processes via Toolhelp32 APIs, matches against a hardcoded list of Microsoft Defender/Windows security process names, and for each match opens the device \\.\Warsaw_PM and sends DeviceIoControl with IOCTL 0x22201C. The input buffer is 1036 bytes with the target PID placed in the first 4 bytes, which is intended to trigger the vulnerable driver behavior to terminate even PPL-protected processes. The program loops once per second until interrupted (CTRL+C), making it suitable for repeatedly killing respawning security services. No network communication is present; the key fingerprintable artifacts are the driver device path (\\.\Warsaw_PM), the IOCTL code (0x22201C), and the targeted process name list.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability associated with the signed wsftprm.sys driver, which SilverFox uses in a ValleyRAT delivery campaign. The report describes vulnerable-driver abuse for kernel-level termination of security processes, but does not explain this CVE's underlying technical flaw.
A vulnerability in affected versions of the wsftprm.sys driver that can be abused for kernel-mode process termination, enabling defense evasion via BYOVD.
A specific vulnerable driver referenced as being used in BYOVD activity to help silence security software and support post-compromise operations.
A documented driver vulnerability in Topaz Antifraud that DragonForce attackers exploited as part of BYOVD-based defense evasion to disable security tools.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.