Posts Categorized: Botnet activity


Fake ‘ADP Speedy Notifications’ lead to client-side exploits and malware

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Over the past week, cybercriminals have resumed spamvertising fake “ADP Immediate Notifications” in an attempt to trick users into clicking on the malicious links found in the emails. The links point to the latest version of the Black Hole Exploit Kit, and consequently, exploit CVE-2013-0422, affecting the latest version of Java. With no fix for this vulnerability currently available, users are advised  to disable Java immediately. More details:

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‘Please confirm your U.S Airways online registration’ themed emails lead to Black Hole Exploit Kit

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In 2012, fake flight reservation confirmations and bogus E-ticket verifications were a popular social engineering theme for cybercriminals. On numerous occasions, we intercepted related campaigns attempting to trick customers into clicking on malicious links, which ultimately exposed them to the client-side exploits served by the latest version of the Black Hole Exploit Kit. Apparently, the click-through rates for these campaigns were good enough for cybercriminals to resume spamvertising related campaigns. In this post, I’ll profile the most recently spamvertised campaign impersonating U.S Airways. More details:

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Spamvertised AICPA themed emails serve client-side exploits and malware

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Certified Public Accountants (CPAs) are a common target for cybercriminals. Throughout 2012, we intercepted several campaigns directly targeting CPAs in an attempt to trick them into clicking on the malicious links found in the emails. Once they click on any of the links, they’re automatically exposed to the client-side exploits served by the latest version of the Black Hole Exploit Kit. In this post, I’ll analyze one of the most recently spamvertised campaigns impersonating the American Institute of Certified Public Accountants, also known as AICPA. More details:

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Fake ‘You have made an Ebay purchase’ themed emails lead to client-side exploits and malware

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Over the past 24 hours, cybercriminals have launched yet another massive spam campaign, this time impersonating both eBay and PayPal, in an attempt to trick their users into clicking on the client-side exploits and malware serving links found in the malicious emails. More details:

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‘Attention! Changes in the bank reports!’ themed emails lead to Black Hole Exploit Kit

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Cybercriminals are currently spamvertising tens of thousands of emails in an attempt to impersonate the recipients’ bank, tricking them into thinking that the Ministry of Finance in their country has introduced new rules for records keeping, and that they need to print and sign a non-existent document. Once users click on the links found in the malicious emails, they’re automatically exposed to the client-side exploits served by the latest version of the Black Hole Exploit Kit. More details:

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Fake BBB (Better Business Bureau) Notifications lead to Black Hole Exploit Kit

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Cybercriminals have recently launched yet another massive spam campaign, impersonating a rather popular brand used in a decent percentage of social engineering driven email campaigns – the BBB (Better Business Bureau). Once users click on any of the links 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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Spamvertised ‘Your Recent eBill from Verizon Wireless’ themed emails serve client-side exploits and malware

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Throughout 2012, we intercepted two malicious campaigns impersonating Verizon Wireless in an attempt to trick its customers into clicking on links pointing to fake eBills. It appears that cybercriminals are back in the game, with yet another Verizon Wireless themed malicious campaign, enticing users to click on the malicious link found in the email. Once users click on the link, they’re automatically exposed to the client-side exploits served by the latest version of the Black Hole Exploit Kit. More details:

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Webroot’s Threat Blog Most Popular Posts for 2012

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It’s that time of the year! The moment when we look back, and reflect on Webroot’s Threat Blog most popular content for 2012. Which are this year’s most popular posts? What distinguished them from the rest of the analyses published on a daily basis, throughout the entire year? Let’s find out.

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Fake ‘UPS Delivery Confirmation Failed’ themed emails lead to Black Hole Exploit Kit

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Continuing their well proven social engineering tactic of impersonating the market leading courier services, cybercriminals are currently mass mailing tens of thousands of emails impersonating UPS, in an attempt to trick users into clicking on the malicious links found in the legitimate-looking emails. Once they click on the links, they’re automatically exposed to the client-side exploits served by the Black Hole Exploit kit. More details:

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Cybercriminals resume spamvertising British Airways themed E-ticket receipts, serve malware

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British Airways customers, watch out! Cybercriminals have resumed spamvertising fake British Airways themed E-receipts — we intercepted the same campaign back in October — in an attempt to trick its customers into executing the malicious attachment found in the emails. More details:

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