Posts Categorized: Threat Research


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

by

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:

Continue Reading »

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

by

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:

Continue Reading »

A peek inside a subscription-based DIY keylogging based type of botnet/malware generating tool

by

Cybercriminals continue to systematically release DIY (do-it-yourself) type of cybercrime-friendly offerings, in an effort to achieve a ‘malicious economies of scale’ type of fraudulent model, which is a concept that directly intersects with our ‘Cybercrime Trends – 2013‘ observations. We’ve recently spotted yet another subscription-based, DIY keylogging based botnet/malware generating tool. Let’s take a peek inside its Web based interface, and expose the cybercrime-friendly infrastructure behind it. More details:

Continue Reading »

AV Isn’t Dead. It’s Evolving.

by

Since the WSJ report was released, endpoint security solutions have received a lot of media attention. As many have started to ask “Is AV really dead?”, I felt it was a good idea to talk about it from my perspective. Let’s get this out of the way right off the bat: no, AV is not dead. However, what is dead, and has been for many years now, is the traditional, reactive AV protection approach that uses signature-based detection. Within the security industry, it is common knowledge that this approach to threat prevention doesn’t scale to address the tactics used by […]

Continue Reading »

Malicious DIY Java applet distribution platforms going mainstream – part two

by

In a cybercrime ecosystem, dominated by client-side exploits serving Web malware exploitation kits, cybercriminals continue relying on good old fashioned social engineering tricks in an attempt to trick gullible end users into knowingly/unknowingly installing malware. In a series of blog posts, we’ve been highlighting the existence of DIY (do-it-yourself), social engineering driven, Java drive-by type of Web based platforms, further enhancing the current efficient state of social engineering driven campaigns. Let’s take a peek inside yet another Web based DIY Java applet distribution platform, discuss its features, and directly connect to the Rodecap botnet, whose connections with related malicious campaigns have been established in several previously […]

Continue Reading »

DIY cybercrime-friendly (legitimate) APK injecting/decompiling app spotted in the wild

by

With millions of Android users continuing to acquire new apps through Google Play, cybercriminals continue looking for efficient and profitable ways to infiltrate Android’s marketplace using a variety of TTPs (tactics, techniques and procedures). Largely relying on the ubiquitous for the cybercrime ecosystem, affiliate network based revenue sharing scheme, segmented cybercrime-friendly underground traffic exchanges, as well as mass and efficient compromise of legitimate Web sites, for the purpose of hijacking legitimate traffic, the market segment for Android malware continues flourishing. We’ve recently spotted, yet another, commercially available DIY cybercrime-friendly (legitimate) APK injecting/decompiling app. The tool is capable of facilitating premium-rate SMS fraud on […]

Continue Reading »

Evolution of Encrypting Ransomware

by

Recently we’ve seen a big change in the encrypting ransomware family and we’re going to shed light on some of the newest variants and the stages of evolution that have led the high profile malware to where it is today. For those that aren’t aware of what encrypting ransomware is, its a cryptovirus that encrypts all your data from local hard drives, network shared drives, removable hard drives and USB. The encryption is done using an RSA -2048 asymmetric public key which makes decryption without the key impossible. Paying the ransom will net you the key which in turn leads to getting […]

Continue Reading »

All About Windows Tech Support Scams

by

*Editors Notes:  The purpose of this research was to see exactly how this scam is carried out, and the extent to which it is done.  DO NOT TRY THIS AT HOME. We used a clean machine, off network, to monitor the activity of the scammer. Have you ever received a phone call from a tech support person claiming to be from Microsoft, and that your Windows based machine has been found to have a virus on it?  These cold calls typically come from loud call centers, and are targeting the uninformed and naïve in hopes of gaining access to their […]

Continue Reading »