Posts Categorized: Botnet activity


Fake ‘Citi Account Alert’ themed emails lead to Black Hole Exploit Kit

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Cybercriminals are currently mass mailing hundreds of thousands of emails impersonating Citi, using two different professionally looking email templates. Upon clicking on any of the links found in the malicious emails, 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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Fake Chase ‘Merchant Billing Statement’ themed emails lead to malware

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Cybercriminals are currently mass mailing tens of thousands of emails, impersonating Chase in an attempt to trick its customers into executing the malicious attachment found in the fake email. Upon execution, the sample downloads additional malware on the affected hosts, and opens a backdoor allowing the cybercriminals behind the campaign complete access to the host. More details:

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Malicious ‘Sendspace File Delivery Notifications’ lead to Black Hole Exploit Kit

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Cybercriminals are currently attempting to trick hundreds of thousands of users into clicking on the malicious links found in the currently spamvertised bogus ‘Sendspace File Delivery Notifications‘. Upon clicking on any of the links found in the email, 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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Fake ‘Flight Reservation Confirmations’ themed emails lead to Black Hole Exploit Kit

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In the midst of the holidays season, cybercriminals are currently spamvertising tens of thousands of malicious “Flight Reservation Confirmations“, in an attempt to trick users into clicking on the link found in the fake emails. Once they click 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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Malicious ‘Security Update for Banking Accounts’ emails lead to Black Hole Exploit Kit

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Cybercriminals have recently launched yet another massive spam campaign attempting to trick e-banking users into thinking that their ability to process ACH transactions has been temporarily disabled. Upon clicking on the link found in the malicious email, users are exposed to the client-side exploits served by the Black Hole Exploit Kit. More details

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Bogus ‘Facebook Account Cancellation Request’ themed emails serve client-side exploits and malware

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Facebook users, watch what you click on! Cybercriminals are currently mass mailing bogus “Facebook Account Cancellation Requests“, in an attempt to trick Facebook’s users into clicking on the malicious link found in the email. Upon clicking on the link, users are exposed to client-side exploits which ultimately drop malware on the affected host. More details:

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Fake ‘FedEx Tracking Number’ themed emails lead to malware

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At the end of October, a cybercriminal or group of cybercriminals launched three massive spam campaigns in an attempt to trick users into clicking on a deceptive link and downloading a malicious attachment. Upon execution, the malware phones back to the command and control servers operated by the party that launched it, allowing complete access to the infected PC. This time they didn’t try impersonating¬†USPS, UPS or DHL, but FedEx. More details:

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Bogus ‘End of August Invoices’ themed emails serve malware and client-side exploits

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Cybercriminals have recently launched yet another massive spam campaign attempting to trick users into clicking on malicious links or executing malicious attachments found in the spamvertised emails. More details:

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Bogus ‘Intuit Software Order Confirmations’ lead to Black Hole Exploit Kit

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Sticking to their well proven practice of systematically rotating impersonated brands, the cybercriminals behind a huge majority of the malicious campaigns that we’ve been profiling recently are once again impersonating Intuit in an attempt to trick its customers into clicking on links exposing them to the client-side exploits served by the Black Hole Exploit Kit. More details:

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Bogus ‘Meeting Reminder” themed emails serve malware

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Cybercriminals are mass mailing malicious emails about a meeting you wouldn’t want to attend – unless you want to compromise the integrity of your computer. Once executed, the malicious attachment opens a backdoor on the affected host, allowing the cybercriminals behind the campaign to gain complete access to the affected host. Naturally, we’ve been monitoring their operations for quite some time, and are easily able to identify multiple connections between their previously launched campaigns. More details:

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