Posts Categorized: Botnet activity


Spamvertised “FDIC: Your business account” themed emails serve client-side exploits and malware

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Cybercriminals are mass mailing tens of thousands of malicious Federal Deposit Insurance Corporation (FDIC) themed emails, in an attempt to trick users into clicking on the client-side exploits serving and malware dropping URLs found in the bogus emails. Let’s dissect the campaign, expose the portfolio of malicious domains using it, provide MD5s for a sample exploit and the dropped malware, as well as connect the campaign with previously launched already profiled malicious campaigns.

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Cybercriminals sell access to tens of thousands of malware-infected Russian hosts

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Today’s modern cybercrime ecosystem offers everything a novice cybercriminal would need to quickly catch up with fellow/sophisticated cybercriminals. Segmented and geolocated lists of harvested emails, managed services performing the actual spamming service, as well as DIY undetectable malware generating tools, all result in a steady influx of new (underground) market entrants, whose activities directly contribute to the overall growth of the cybercrime ecosystem. Among the most popular questions the general public often asks in terms of cybercrime, what else, besides money, acts as key driving force behind their malicious and fraudulent activities? That’s plain and simple greed, especially in those […]

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Newly launched managed ‘malware dropping’ service spotted in the wild

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Among the most common misconceptions about the way a novice cybercriminal would approach his potential victims has to do with the practice of having him looking for a ‘seed’ population to infect, so that he can then use the initially infected users as platform to scale his campaign. In reality though, that used to be the case for cybercriminals, years ago, when managed cybercrime-as-a-service types of underground market propositions were just beginning to materialize. In 2013, the only thing a novice cybercriminal wanting to gain access to thousands of PCs located in a specific country has to do is to make […]

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Fake ‘Apple Store Gift Card’ themed emails serve client-side exploits and malware

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Apple Store users, beware! A currently ongoing malicious spam campaign is attempting to trick users into thinking that they’ve successfully received a legitimate ‘Gift Card’ worth $200. What’s particularly interesting about this campaign is that the cybercriminal(s) behind it are mixing the infection vectors by relying on both a malicious attachment and a link to the same malware found in the malicious emails. Users can become infected by either executing the attachment or by clicking on the client-side exploits serving link found in the emails. More details:

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Cybercriminals spamvertise fake ‘O2 U.K MMS’ themed emails, serve malware

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British users, watch what you execute on your PCs! An ongoing malicious spam campaign is impersonating U.K’s O2 mobile carrier, in an attempt to trick its customers into executing a fake ‘MMS message” attachment found in the emails. Once socially engineered users do so, their PCs automatically join the botnet operated by the cybercriminal/gang of cybercriminals whose activities we continue to monitor. More details:

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Malicious Bank of America (BofA) ‘Statement of Expenses’ themed emails lead to client-side exploits and malware

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Bank of America (BofA) customers, watch what you click on! A currently ongoing malicious spam campaigns is attempting to entice BofA customers into clicking on the client-side exploit serving URLs found in legitimate looking ‘Statement of Expenses’ themed emails. Once users with outdated third-party applications and browser plugins click on the link, an infection is installed that automatically converts their PC’s into zombies under the control of the botnet operated by the cybercriminal/gang of cybercriminals behind the campaign. More details:

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Fake ‘iPhone Picture Snapshot Message’ themed emails lead to malware

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We’ve just intercepted a currently circulating malicious spam campaign that’s attempting to trick iPhone owners into thinking that they’ve received a ‘picture snapshot message’. Once users execute the malicious attachment, their PCs automatically join the botnet operated by the cybercriminal/gang of cybercriminals, whose activities we’ve been closely monitoring over the last couple of months. More details:

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Spamvertised ‘Vodafone U.K MMS ID/Fake Sage 50 Payroll’ themed emails lead to (identical) malware

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We’ve intercepted two, currently circulating, malicious spam campaigns enticing users into executing the malicious attachments found in the fake emails. This time the campaigns are impersonating Vodafone U.K or pretending to be a legitimate email generated by Sage 50′s Payroll software. More details:

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Fake ‘iGO4 Private Car Insurance Policy Amendment Certificate’ themed emails lead to malware

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In a clear demonstration of low QA (Quality Assurance) applied to an ongoing malicious spam campaign, the cybercriminals behind the recently profiled ‘Cybercriminals spamvertise tens of thousands of fake ‘Your Booking Reservation at Westminster Hotel’ themed emails, serve malware‘ campaign, have launched yet another spam campaign. Despite the newly introduced themed attempting to trick users into thinking that they’ve received a ‘iGO4 Private Car Insurance Policy Amendment Certificate‘, the cybercriminals behind it didn’t change the malicious binary from the previous campaign. More details:

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Spamvertised ‘Export License/Invoice Copy’ themed emails lead to malware

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By Dancho Danchev We’ve just intercepted a currently circulating malicious spam campaign consisting of tens of thousands of fake ‘Export License/Invoice Copy’ themed emails, enticing users into executing the malicious attachment. Once the socially engineered users do so, their PCs automatically become part of the botnet operated by the cybercriminals behind the campaign. More details:

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