Posts Categorized: spam


Spamvertised ‘Customer Daily Statement’ themed emails lead to malware

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Cybercriminals continue to efficiently populate their botnets, through the systematic and persistent spamvertising of tens of thousands of fake emails, for the purpose of socially engineering gullible end users into executing the malicious attachments found in the rogue emails. We’ve recently intercepted a currently circulating malicious campaign, impersonating Barkeley Futures Limited, tricking users into thinking that they’ve received a legitimate “Customer Daily Statement”.

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Spamvertised ‘June invoice” themed emails lead to malware

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Cybercriminals continue spamvertising tens of thousands of malicious emails on their way to socially engineer gullible end users, ultimately increasing their botnet’s infected population through the systematic and persistent rotation of popular brands. We’ve recently intercepted a currently circulating malicious campaign enticing users into executing the fake attachment. More details:

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Malicious JJ Black Consultancy ‘Computer Support Services’ themed emails lead to malware

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Relying on the systematic and persistent spamvertising of tens of thousands of fake emails, as well as the impersonation of popular brands for the purpose of socially engineering gullible users into downloading and executing malicious attachments found in these emails, cybercriminals continue populating their botnets. We’ve recently intercepted a currently circulating malicious campaign, impersonating JJ Black Consultancy. More details:

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Spamvertised ‘Notification of payment received’ themed emails lead to malware

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PayPal users, watch what you click on! We’ve recently intercepted a currently circulating malicious spamvertised campaign which is impersonating PayPal in an attempt to trick socially engineered end users into clicking on the malware-serving links found in the emails. More details:   Sample screenshot of the spamvertised email:

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DIY automatic cybercrime-friendly ‘redirector generating’ service spotted in the wild – part two

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Cybercriminals continue actively abusing/mixing legitimate and purely malicious infrastructure, on their way to take advantage of clean IP reputation, for the purpose of achieving a positive ROI (return on investment) out of their fraudulent/malicious activities, in terms of attribution and increasing the average lifetime for their campaigns. Acting as intermediaries within the exploitation/social engineering/malware-serving chain, the market segment for this type of cybercrime-friendly services continues flourishing, with more vendors joining it, aiming to differentiate their UVP (unique value proposition) through a variety of ‘value-added’ services. We’ve recently spotted yet another managed/on demand redirector generating service, that’s empowering potential cybercriminals with the […]

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Commercially available database of 52M+ ccTLD zone transfer domains spotted in the wild

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For years, cybercriminals have been building ‘hit lists’of potential targets through automated and efficiency-oriented reconnaissance TTPs (tactics, techniques and procedures).  The aim is to fraudulently/maliciously capitalize on these databases consisting of both corporate and government users. Seeking a positive return on their fraudulent/malicious activities, cybercriminals also actively apply basic QA (Quality Assurance) processes, standardization, systematic releasing of DIY (do-it-yourself) cybercrime-friendly applications – all to further ensure a profitable outcome for their campaigns. Thanks to the active implementation of these TTPs, in 2014, the market segments for spam-ready managed services/blackhat SEO (search engine optimization) continue to flourish with experienced vendors starting to ‘vertically integrate’ within the cybercrime […]

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5M+ harvested Russian mobile numbers service exposes fraudulent infrastructure

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Cybercriminals continue adapting to the exponential penetration of mobile devices through the systematic release of DIY (do-it-yourself) mobile number harvesting tools, successfully setting up the foundations for commercial managed/on demand mobile phone number harvesting services, ultimately leading to an influx of mobile  malware/spam campaigns. In addition to boutique based DIY operations, sophisticated, ‘innovation’ and market development-oriented cybercriminals are actively working on the development of commercially available Android-based botnet generating tools, further fueling growth into the market segment. In a series of blog posts, we’ve been profiling multiple cybercrime-friendly services/malicious Android-based underground market releases, further highlighting the professionalization of the market […]

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Multiple spamvertised bogus online casino themed campaigns intercepted in the wild

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Regular readers of Webroot’s Threat Blog are familiar with our series of posts detailing the proliferation of social engineering driven, privacy-violating campaigns serving W32/Casino variants. Relying on affiliate based revenue sharing schemes and spamvertised campaigns as the primary distribution vectors, the rogue operators behind them continue tricking tens of thousands of gullible users into installing the malicious applications. We’ve recently intercepted a series of spamvertised campaigns distributing W32/Casino variants. Let’s profile the campaigns, provide actionable intelligence on the rogue domains involved in the campaigns, as well as related MD5s known to have interacted with the same rogue infrastructure. More details:

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Spamvertised ‘You received a new message from Skype voicemail service’ themed emails lead to Angler exploit kit

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We’ve just intercepted a currently circulating malicious spam campaign that’s attempting to trick potential botnet victims into thinking that they’ve received a legitimate Voice Message Notification from Skype. In reality though, once socially engineered users click on the malicious link found in the bogus emails, they’re automatically exposed to the client-side exploits served by the Angler exploit kit. More details:

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