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CVE-2022-44698 is a Windows SmartScreen security feature bypass vulnerability affecting Microsoft Windows. The flaw involves the handling of malformed digital or Authenticode signatures in files delivered from untrusted sources. By crafting a file with a malformed signature, an attacker can cause Windows SmartScreen and related Mark-of-the-Web enforcement to fail to present the expected security warning to the user. Reported exploitation chains used this behavior to bypass Mark-of-the-Web protections on downloaded content and allow script-based malware loaders to execute without the normal Windows warning prompt. The vulnerability was patched by Microsoft in December 2022 and was reported as actively exploited in the wild prior to remediation.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Windows SmartScreen security feature bypass vulnerability referenced as part of a set of SmartScreen zero-days.
A Windows Mark-of-the-Web bypass vulnerability involving malformed digital signatures that allows downloaded files to evade security warnings and execute more easily.
A previously patched Windows SmartScreen vulnerability referenced as part of a series of SmartScreen zero-days.
Referenced prior zero-day (MOTW-related context) exploited in the wild and later patched by Microsoft in December 2022.
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.