In the very same way a cybercrime analyst is reverse engineering and sandboxing a particular piece of malware in order to get a better understanding of who's being it, and how successful the campaign is once access to the command and control interface is obtained, cybercriminals themselves are actively reverse engineering the most popular crimeware kits, looking, and actually finding remotely exploitable vulnerabilities allowing them to competely hijack someone's command and control, and consequently, their botnet. The Zeus crimeware kit, which I've been discussing and analyzing for a while, is the perfect example of how once a popular underground kit start acting as the default crimeware kit, cybercriminals themselves start looking for vulnerabilities that they could take advantage of. And those who look, usually end up finding.
A remotely exploitable flaw allowing cybercriminals to remotely inject a web shell within another cybercriminal's web command and control interface of the popular Pinch crimeware that's been around VIP underground forums since June, 2007, is starting to receive the necessary attention from script kiddies catching up with the possibility of hijacking someone's malware campaign due to misconfigured command and control servers.
With the exploit now in the wild, retro cybercriminals still taking advantege of the ubiqutous command and control interface that could be easily used by other malware rathar than Pinch, "cybercriminals are advised" to randomize the default file name of the gate, and apply the appropriate directory permissions.
Monocultural insecurities are ironically started to emerge in the IT underground with the increasing commoditization of what used to be a proprietary web exploitation malware kit or a banker malware kit, allowing easy entry into the malware industry through the unregulated use of what some would refer to as an "advanced technology" that only a few cybercriminals used to have access to an year ago. Just like legitimate software vendors, authors of crimeware kits are also trying to enforce their software licenses and forbidding any reverse engineering of their kits in order to enjoy the false feeling of security provided by the security through obscurity. The result? Cybercrime groups filing for bankruptcy unable to achieve a positive return on investment due to their intellectual property getting pirated and their inability to enforce the licenses that they issue to their customers.
We're definitely going to see more trivial, but then again, remotely exploitable vulnerabilities within popular crimeware kits, which can assist both the cybercrime analysts and naturally the cybercriminals themselves. For the time being, even the most sophisticated malware campaigns aren't fully taking advantage of the evasive and stealth tactics that the kits, or their common sense allows them to - let's see for how long.
Related posts:
Russia's FSB vs Cybercrime
Crimeware in the Middle - Zeus
The Zeus Crimeware Kit Vulnerable to Remotely Exploitable Flaw
Coding Spyware and Malware for Hire
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