Russian spammers release Skype spamming tool

Russian spammers release Skype spamming tool

Taking advantage of DIY spamming tools and harvested databases of user names, cybercriminals have been systematically abusing multiple instant messaging services in an attempt to trick as many users as possible into interacting with their malicious campaign.

In this post, I’ll profile a newly released DIY Skype spamming tool, discuss its main features, and whether or not it can lead to an increase in the overall spam levels affecting Microsoft’s Skype.

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Cybercriminals target Twitter, spread thousands of exploits and malware serving tweets

Cybercriminals target Twitter, spread thousands of exploits and malware serving tweets

Twitter users, beware!

Over the past several days, cybercriminals have been persistently spamvertising thousands of exploits and malware serving links across the most popular micro blogging service. Upon clicking on the clicks, users are exposed to the exploits served by the Black Hole web malware exploitation kit.

What’s so special about this campaign? What’s the detection rate of the malware it drops? Where does it phone back once it’s executed? Have we seen additional malware phone back to the same command and control servers, indication a connection between these campaigns? Let’s find out.

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Spamvertised ‘Download your USPS Label’ themed emails serve malware

Spamvertised ‘Download your USPS Label’ themed emails serve malware

Cybercriminals are currently spamvertising millions of emails impersonating the United States Postal Service (USPS), in an attempt to trick end and corporate users into downloading and unpacking the malicious .zip attachment distributed by them.

What’s so special about this campaign? Where is the malicious sample phoning back to? Are there more malware samples that also phoned back to the same command control servers in the past? Let’s find out.

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Cybercriminals impersonate law enforcement, spamvertise malware-serving ‘Speeding Ticket’ themed emails

Cybercriminals impersonate law enforcement, spamvertise malware-serving ‘Speeding Ticket’ themed emails

Not fearing prosecution, cybercriminals regularly impersonate law enforcement online in an attempt to socially engineer  end users and corporate users into interacting with their malicious campaigns. From 419 scams, police ransomware, to law enforcement themed malware-serving email campaigns, cybercriminals continue abusing the international branches of various law enforcement agencies.

In this post, I’ll profile a currently spamvertised malware-serving campaign, indicating that the user has “violated red light traffic signal” and that he should download the fake camera recording of his vehicle attached to the email.

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Spamvertised Intuit themed emails lead to Black Hole exploit kit

Spamvertised Intuit themed emails lead to Black Hole exploit kit

Cybercriminals are currently spamvertising millions of emails impersonating Intuit, in an attempt to trick end and corporate users into clicking on the malicious links found in the emails.

The emails pretend to be coming from Intuit’s PaymentNetwork and acknowledge the arrival of an incoming payment. In reality though, they redirect users to a Black Hole exploit kit landing URLs where client-side exploits are served, and ultimately malware is dropped on the infected hosts.

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Russian Ask.fm spamming tool spotted in the wild

Russian Ask.fm spamming tool spotted in the wild

On their way to occupy an even bigger market share, spammers constantly look for new ways to increase visitor conversion, and target as many users as possible with the least amount of time and money invested.

For years, their tactics included the development of cybercrime friendly online communities, sophisticated harvesting and validation of emails and user names across popular Web services, abusing the Domain Keys Identified Mail (DKIM) trust established between the most popular providers of free Web based email, development of DIY image spam generating platformsconversion of malware-infected hosts into spam spewing zombies, and most importantly, efficient ways to bypass anti-spam filters put in place by the security industry.

In this post, I’ll profile a recently advertised Ask.fm spamming tool, capable of spamming thousands of users through the use of proxies, which are in fact malware-infected hosts converted to anonymization proxies.

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Webroot Bulletin Regarding AV-Comparatives Results

Webroot Bulletin Regarding AV-Comparatives Results

If there is one thing that can be observed about the AV industry, it is that no solution is ever 100% effective at blocking malware. With this in mind, Webroot SecureAnywhere (WSA) was designed to protect users even in cases where undetected malicious software has made it onto the system.

AV-Comparatives recently published results for June’s “Real World” Protection Test. This test aims to replicate a real world experience for how malware would infect a PC. The scores indicate how many threats were detected vs. missed.

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Cybercriminals impersonate UPS in client-side exploits and malware serving spam campaign

Cybercriminals impersonate UPS in client-side exploits and malware serving spam campaign

In an attempt to aggregate as much traffic as possible, cybercriminals systematically abuse popular brands and online services. Next to periodically rotating the brands, they also produce professional looking email templates, in an attempt to successfully brand-jack these companies, and trick their customers into interacting with the malicious emails.

Today’s highlight is on a currently spamvertised client-side exploits and malware serving campaign impersonating UPS (United Parcel Service). Once users click on the links found in the malicious email, they’re automatically redirected to a Black Hole exploit kit landing page serving client-side exploits, and ultimately dropping malware on the exploited hosts.

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New Russian service sells access to compromised social networking accounts

New Russian service sells access to compromised social networking accounts

On daily basis, hundreds of thousands of legitimate accounts across multiple social networks get compromised, to be later on abused as a platform for launching related cyber attacks and social engineering attempts.

Recently, I came across a new Russian service offering access to compromised accounts across multiple social networks such as Vkontakte, Twitter, Facebook, LiveJournal, and last but not least, compromised email accounts. What’s particularly interesting about this service is the fact that it’s exclusively targeting Russian and Ukrainian users.

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