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Posts Tagged ‘valid signature’

We come across a plenty of malware reports every day. Sometimes we have to deal with some special cases, where a respected vendor is involved. This time it was the Dell driver download site. Download siteThe “Download file” link leads to this unexpected screen (our user complained about a false positive): What a surprise?!Well, being […]

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In the last few days a malicious program has been discovered with a valid signature. The malware is a 32- or 64-bit dropper that is detected by Kaspersky Lab as Trojan-Dropper.Win32.Mediyes or Trojan-Dropper.Win64.Mediyes respectively. Numerous dropper files have been identified that were signed on various dates between December 2011 and 7 March 2012. In all […]

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In a recently concluded discussion by the Domain Keys Identified Mail (DKIM) Working Group, a group created under the Internet Engineering Tasks Force (IETF), some of those involved have decided to disregard phishing-related threats common in today’s effective social engineering attacks. Rather than validating DKIM’s input and not relying upon specialized handling of DKIM results, […]

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