Posts Categorized: Botnet activity


Fake FedEx ‘Tracking ID/Tracking Number/Tracking Detail’ themed emails lead to malware

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On a daily basis, we intercept hundreds of thousands of fraudulent or malicious emails whose purpose is to either infect users with malicious software or turn them into victims of fraudulent schemes. About 99% of these campaigns rely on social engineering tactics, and in the cases where they don’t include direct links to the actual malware, they direct users to the market leading Black Hole Exploit Kit. In terms of volume and persistence, throughout January, 2013, a single malicious campaign impersonating FedEx topped our metrics data. What’s so special about this campaign? It’s the fact that the digital fingerprint of one of the most […]

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Fake Booking.com ‘Credit Card was not Accepted’ themed emails lead to malware

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Cybercriminals are mass mailing tens of thousands of emails, impersonating Booking.com, in an attempt to trick its users into thinking that their credit card was not accepted. Users are then urged to click on a fake “Print Booking Details” link, which leads them to the malware used in the campaign. More details:

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Malicious ‘Facebook Account Cancellation Request” themed emails serve client-side exploits and malware

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In December, 2012, we intercepted a professional-looking email that was impersonating Facebook Inc. in an attempt to trick its users into thinking that they’ve received an “Account Cancellation Request“. In reality, once users clicked on the links, their hosts were automatically exploited through outdated and already patched client-side vulnerabilities, which dropped malware on the affected PCs. Over the past 24 hours, cybercriminals have resumed spamvertising tens of thousands of legitimate-looking Facebook themed emails, once again using the same social engineering theme. More details:

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Fake ‘FedEx Online Billing – Invoice Prepared to be Paid’ themed emails lead to Black Hole Exploit Kit

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Users of FedEx’s Online Billing service, watch out! Cybercriminals are currently mass mailing tens of thousands of emails impersonating the company, in an attempt to trick its customers into clicking on exploits and malware dropping links found in the legitimate-looking emails. More details:

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Bogus ‘Your Paypal Transaction Confirmation’ themed emails lead to Black Hole Exploit Kit

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Financial institutions and online payment processors are a common target for cybercriminals, who systematically brand-jack and abuse the reputation of their trusted brands, in an attempt to scam or serve malware to their customers. Over the past 24 hours, cybercriminals have launched yet another spam campaign, impersonating PayPal, in an attempt to trick its users into thinking that they’ve received a “Transaction Confirmation“, which in reality they never really made. Once users click on any of the links found in the malicious emails, they’re exposed to the client-side exploits served by the Black Hole Exploit Kit. More details:

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Fake Intuit ‘Direct Deposit Service Informer’ themed emails lead to Black Hole Exploit Kit

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Cybercriminals are currently spamvertising tens of thousands of fake emails, impersonating Intuit, in an attempt to trick its customers and users into clicking on the malicious links found in the emails. Once users click on any of the links, they’re exposed to the client-side exploits served by the latest version of the Black Hole Exploit Kit, which ultimately drops malware on the affected hosts. More details:

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Android malware spreads through compromised legitimate Web sites

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Over the past 24 hours, our sensor networks picked up an interesting website infection affecting a popular Bulgarian website for branded watches, which ultimately redirects and downloads premium rate SMS Android malware on the visiting user devices. The affected Bulgarian website is only the tip of the iceberg, based on the diversified portfolio of malicious domains known to have been launched by the same party that launched the original campaign. More details:

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Leaked DIY malware generating tool spotted in the wild

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How easy is it to create an undetected piece of malware these days? Too easy to be true! With more DIY malware botnets and DIY malware generating tools continuing to leak at public cybercrime-friendly forums, today’s novice cybercriminals have access to sophisticated point’n’click malware generating tools that were once only available in the arsenal of the experienced cybercriminal. In this post, I’ll profile a recently leaked DIY malware generating tool, discuss its core features, and emphasize on its relevance in the context of the big picture when it comes to ongoing waves of malicious activity we’ve been monitoring over the […]

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‘Batch Payment File Declined’ EFTPS themed emails lead to Black Hole Exploit Kit

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Cybercriminals are currently mass mailing tens of thousands of emails, impersonating the EFTPS (Electronic Federal Tax Payment System), in an attempt to trick its users into clicking on exploits and malware serving malicious links found in the emails. More details:

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