Posts Tagged: spam


Malicious ‘RE: Your Wire Transfer’ themed emails serve client-side exploits and malware

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Over the last couple of days, we’ve been monitoring a persistent attempt to infect tens of thousands of users with malware through a systematic rotation of multiple social engineering themes. What all of these campaigns have in common is the fact that they all share the same malicious infrastructure. Let’s profile one of the most recently spamvertised campaigns, and expose the cybercriminals’ complete portfolio of malicious domains, their related name servers, dropped MD5 and its associated run time behavior. More details:

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Spamvertised IRS ‘Income Tax Refund Turned Down’ themed emails lead to Black Hole Exploit Kit

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Its tax season and cybercriminals are mass mailing tens of thousands of IRS (Internal Revenue Service) themed emails in an attempt  to trick users into thinking that their income tax refund has been “turned down”. Once users click on any of the links found in the malicious emails, they’re automatically exposed to the client-side exploits served by the Black Hole Exploit Kit. More details:

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Fake ‘You’ve blocked/disabled your Facebook account’ themed emails serve client-side exploits and malware

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Cybercriminals are currently spamvertising two separate campaigns, impersonating Facebook Inc., in an attempt to trick its users into thinking that their Facebook account has been disabled. What these two campaigns have in common is the fact that the client-side exploits serving domains are both parked on the same IP. 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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Mobile spammers release DIY phone number harvesting tool

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Need a good reason not to connect to the public Web with your phone? Wonder where all that SMS spam is coming from? Keep reading. Mobile phone spammers have recently released a new version of a well known phone number harvesting tool, whose main objective is to crawl the public Web and index mobile phone numbers, which will later be used for various malicious and fraudulent purposes. More details:

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‘Your Kindle e-book Amazon receipt’ themed emails lead to Black Hole Exploit Kit

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Kindle owners, watch what you click on! Cybercriminals are currently attempting to trick Kindle owners into thinking that they’ve received a receipt from an E-book purchase from Amazon.com. In reality, when users click on any of the links found in the malicious emails, they’re automatically exposed to the  client-side exploits served by the Black Hole Exploit Kit. More details:

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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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