Windows Mark of the Web / SmartScreen Security Feature Bypass (copy2pwn)
CVE-2024-38213 is a Windows Mark of the Web (MotW) security feature bypass vulnerability affecting SmartScreen protections. Microsoft describes it as a Windows Mark of the Web Security Feature Bypass Vulnerability, and reporting cited in the provided content states it allows an attacker to bypass the SmartScreen security feature. Additional reporting from ZDI identifies the issue as "copy2pwn" and states that it results in a file from a WebDAV share being copied locally without Mark of the Web protections. In practical terms, a file obtained from a WebDAV location can lose the MotW metadata that would normally cause Windows security controls such as SmartScreen to warn or restrict execution, enabling delivery of malicious content with reduced user-facing protections. The vulnerability was reported as exploited in the wild, including by DarkGate operators, and was also referenced in Sandworm-linked activity.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Vulnerability exploited by Sandworm (UAC-0212).
A previously patched Mark of the Web security feature bypass vulnerability that was exploited in the wild as a zero-day.
A security feature bypass vulnerability in Windows Mark of the Web, which is under active exploitation in the wild.
Windows Mark-of-the-Web (MotW) security feature bypass where files copied from WebDAV shares may not receive MotW, enabling SmartScreen/Protected View bypass; exploited in the wild (reported used by DarkGate).
The version that knows your environment.
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.