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Excel

Targeted Malware and Microsoft

Microsoft issued an advisory last week – Microsoft Security Advisory (969136) "Vulnerability in Microsoft Office PowerPoint Could Allow Remote Code Execution" – that "could allow remote code execution if a user opens a specially crafted PowerPoint file." The advisory uses very similar language to Microsoft’s recent advisory on an Excel vulnerability, referring to "only…limited and

Patches Despatches

In a previous blog relating to Acrobat vulnerabilities, I suggested that you might want to sign up for Adobe’s alerts service. I did, but still haven’t received any news from it. However, it appears that The Register (or one of its sources) did, so I’m nevertheless aware that Adobe has released updates to address the

Excel Exasperation, Acrobat Aggro

As The Register has pointed out, the Microsoft Security Bulletin Advance Notification for March 2009 doesn’t mention a forthcoming patch for the Excel vulnerability we’ve already flagged in this blog here and here and here. Since, as John Leyden remarks, the exploit is being actively exploited, it may seem that Microsoft are not taking the issue seriously

Targeted Excel Malware Revisited.

Further to our blog last week on targeted attacks exploiting a vulnerability found in a number of Excel versions including  Mac versions, viewers, and the Open XML File Format Converter for Mac. While we already have a specific detection for the threat we call X97M/TrojanDropper.Agent.NAI, we also have generic detection for the exploit, flagged as X97M/Exploit.CVE-2009-0238.Gen. This detection

EXcel EXploits

Our guys in Bratislava have issued a press release about one of the latest examples of the current wave of Excel exploits, which we detect as X97M/TrojanDropper.Agent.NAI. When the malicious Excel document is opened, it drops the backdoor Trojan we call Win32/Agent.NVV, which allows a remote attacker to get access to and some control over the

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