Posts Tagged: Microsoft


Cybercriminals spamvertise bogus ‘Microsoft License Orders’ serve client-side exploits and malware

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Cybercriminals are currently mass mailing millions of emails impersonating Microsoft Corporation in an attempt to trick users into clicking on a link in a bogus ‘License Order” confirmation email. Upon clicking on the link, users are exposed to the client-side exploits served by the latest version of the Black Hole Exploit Kit. More details:

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Microsoft issues 6 security bulletins on ‘Patch Tuesday’

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On Tuesday, Microsoft issued 6 security bulletins, 4 of them critical, and 2 important updates. The bulletins fix a total of 11 vulnerabilities in Windows, Microsoft Office, and Internet Explorer. According to Microsoft, the company has already observed targeted malware attacks taking advantage of the MS12-027 vulnerability. In order to mitigate the risks posed by these currently circulating targeted attacks, the company is advising users to disable the ActiveX controls via the Trust Center Settings > ActiveX Settings, option. More details:

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This blackhole exploit kit gives you Windows Media Player and a whole lot more

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By Mike Johnson As a follow-up to the Blackhole Exploit posting, I thought I would share one aspect of my job that I truely enjoy: Discovery. While investigating some active urls being served up via a blackhole kit, I noticed something quite odd, as I would end up on sites that had malicious code injected into their webpages. Once the redirection to the blackhole kit was initiated, I saw the usual exploits taking place, first being Internet Explorer and Adobe Flash, then onto Adobe Reader and Java. This time, the kit didn’t stop there. Internet Explorer proceeded to launch Windows Media Player. Since I had never […]

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Brazilian “Winehouse” Trojan Sends Hotmail, Bank Passwords to China

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Late Monday, after news about the death of troubled pop singer Amy Winehouse had been circling the globe for a little more than 48 hours, we saw the first malware appear that used the singer’s name as a social engineering trick to entice victims to run the malicious file. Abusing celebrity names, news, or even deaths isn’t a new (or even particularly interesting) social engineering tactic, but there was one unique aspect to this particular malware’s behavior that raised some eyebrows around here: It appears that Brazilian phisher-Trojan writers seem to be working more closely with their Chinese counterparts, using […]

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Removing Popureb Doesn’t Require a Windows Reinstall

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By Marco Giuliani Last Wednesday, Microsoft published a blog post detailing a significant update to a piece of malware named Popureb. The malware adds code to the Master Boot Record, or MBR, a region of the hard disk that’s read by the PC during bootup, long before the operating system has had a chance to get started. Researchers sometimes refer to these kinds of malware as bootkits, or a rootkit which loads at such a low level during the boot process that it is invisible to the operating system, and therefore very difficult to remove. Microsoft researcher Chun Feng detailed […]

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Defencelab Rogue Steals Microsoft’s Name (Again)

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When you see an online order form that bears Microsoft’s logo and the words “pay to: Microsoft Inc.,” are you any more likely to enter a credit card number into the form and click submit? That’s the psychological experiment currently being undertaken by a company that calls itself DefenceLab, which subjects unsuspecting users to its peculiar blend of fakealert with rogue antivirus. Last year, our friends at Sunbelt wrote two very interesting blog items about DefenceLab. At the time, DefenceLab was accused of lifting content from the products and Web sites of legitimate comapnies such as Microsoft and AVG, inserting […]

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Zero-Day Malware Drops Payloads Signed with a Forged Microsoft Certificate

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Security Websites are buzzing with news that a new zero-day exploit against Adobe Reader and Acrobat is circulating today, causing computers to become infected with malware simply by visiting certain Web pages. While the exploit itself is worthy of note, nobody is talking about the payload it downloads: It installs a trio of files dressed up to look like Windows system files which have been digitally signed with a security certificate supposedly issued by Microsoft. The digital signature gives the casual user the impression that the two signed files — an executable and a DLL both named “LNETCPL” — are […]

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Spammers Use Bing to Bypass Filters, Spam Bad Links

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Word came down from our Threat Research team this morning about a new spam campaign that uses upstart Bing search engine’s own redirection mechanism to bypass spam filters and send undesirable links over email. On top of that, the spammers are also abusing MySpace’s lnk.ms link shrinking system to further obfuscate the destination that the spammed link points to. When you view an RSS feed in Bing (such as their news feed, for example)  all the clickable links in the feed use Bing’s internal redirection mechanism, so before you end up on the news story you want to read, your browser […]

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