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CVE-2012-0151 is a vulnerability in the Authenticode Signature Verification function (WinVerifyTrust) in multiple versions of Microsoft Windows, including XP SP2/SP3, Server 2003 SP2, Vista SP2, Server 2008 SP2/R2/R2 SP1, Windows 7 Gold/SP1, and Windows 8 Consumer Preview. The vulnerability arises because the signature verification process does not properly validate the digest of a signed portable executable (PE) file. This allows attackers to append arbitrary data to a signed PE file without invalidating its signature, enabling user-assisted remote code execution if a user runs a maliciously modified file.
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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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability referenced as part of ZLoader operators' defense-evasion techniques using validly signed files to hide malicious scripts.
Referenced as an example in discussion of a digital signature verification vulnerability, but not specifically described as the vulnerability used in the campaign.
Referenced as related to the known Authenticode signature verification weakness (appending data to signed files while preserving apparent signature validity); the content does not add further specifics on this CVE’s mechanics.
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.