Posts Categorized: Downloaders


Cybercriminals populate Scribd with bogus adult content, spread malware using Comodo Backup

by

On their way to convert legitimate traffic into malware-infected hosts using web malware exploitation kits, cybercriminals have been actively experimenting with multiple traffic acquisition techniques over the past couple of years. From malvertising (the process of displaying malicious ads), to compromised high-trafficked web sites, to blackhat SEO (search engine optimization), the tools in their arsenal have been systematically maturing to become today’s sophisticated traffic acquisition platforms delivering millions of unique visits from across the world, to the cybercriminals behind the campaigns. What are some of the latest campaigns currently circulating in the wild? How are cybercriminals monetizing the hijacked traffic? Are […]

Continue Reading »

Spamvertised ‘Your Amazon.com order confirmation’ emails serving client-side exploits and malware

by

Everyone uses Amazon! At least that’s what the cybercriminals are hoping.  Cybercriminals are currently spamvertising millions of emails impersonating Amazon.com Inc. in an attempt to trick end and corporate users into clicking on the malicious links found in the emails. More details:

Continue Reading »

Skype propagating Trojan targets Syrian activists

by

The Electronic Frontier Foundation (EFF) is reporting on a recently intercepted malicious documents distributed over Skype, apparently targeting Syrian activists. Upon viewing the document, it drops additional files on the infected hosts, and opens a backdoor allowing the cyber spies behind the campaign access to the infected PC.  Webroot has obtained a copy of the malware and analyzed its malicious payload. More details:

Continue Reading »

‘Windstream bill’ themed emails serving client-side exploits and malware

by

Cybercriminals are currently spamvertising millions of emails impersonating the Windstream Corporation, in an attempt to trick end and corporate users into clicking on links found in the malicious email. Upon clicking on the links hosted on compromised web sites, users are exposed to client-side exploits served by the BlackHole web malware exploitation kit. More details:

Continue Reading »

Pop-ups at popular torrent trackers serving W32/Casonline adware

by

Everyone knows that there’s no such thing as free lunch. The same goes for freely distributed pirated content online. Recently, Webroot decided to sample malicious activity within some of the most popular Eastern European torrent trackers, based in Bulgaria, Ukraine, and Romania for starters. The results? Countless backdoored key generators and cracks for popular games and software, and most interestingly, monetization of the huge traffic by delivering pop-ups promoting the ubiquitous W32/Casonline adware, which in case you remember was recently spamvertised to millions of end and corporate users. More details:

Continue Reading »

Spamvertised CareerBuilder themed emails serving client-side exploits and malware

by

End and corporate users, and especially CareerBuilder users, beware! Cybercriminals are currently spamvertising millions of emails impersonating the popular jobs portal CareerBuilder in an attempt to trick users into  clicking on client-side exploits serving links. The current campaign, originally circulating in the wild since 26 Apr, 2012, is a great example of a lack of QA (quality assurance) since they’re spamvertising a binary that’s largely detected by the security community. More details:

Continue Reading »

Spamvertised ‘Pizzeria Order Details’ themed campaign serving client-side exploits and malware

by

End and corporate users (and especially Pizza eaters), beware! Cybercriminals are currently spamvertising hundreds of thousands of emails, impersonating FLORENTINO`s Pizzeria, and enticing  users into clicking on a client-side exploits and malware serving link in order to cancel a $169.90 order that they never really made. More details:

Continue Reading »

Cybercriminals release ‘Sweet Orange’ – new web malware exploitation kit

by

From DIY (do-it-yourself) exploit generating tools, to efficient platforms for exploitation of end and corporate users, today’s efficiency-oriented cybercriminals are constantly looking for ways to monetize hijacked web traffic. In order to do so, they periodically introduce new features in the exploit kits, initiate new partnerships with managed malware/script crypting services, and do their best to stay ahead of the security industry. What are some of the latest developments in this field? Meet Sweet Orange, one of the most recently released web malware exploitation kits, available for sale at selected invite-only cybercrime-friendly communities. What’s so special about Sweet Orange? Does it […]

Continue Reading »

Hewlett-Packard shipping malware-infected compact flash cards

by

Earlier this week, HP’s Software Security Response Team issued a security bulletin, alerting users that certain HP ProCurve 5400 zl switches were shipped with malware installed on the associated compact flash cards. No details were given about the type of malware shipped to unaware customers. More details on the affected switches, including their serial numbers:

Continue Reading »

New underground service offers access to hundreds of hacked PCs

by

Want to buy anonymous access to hacked PCs, spam-free SMTP servers (Simple Mail Transfer Protocol), or compromised bank accounts? A newly launched underground Web service, is currently offering access to hundreds of hacked PCs, SMTP servers, and hacked bank accounts. Let’s take a deeper look:

Continue Reading »