Monthly Archives: January 2012

Cybercriminals generate malicious Java applets using DIY tools

By Dancho Danchev Who said there’s such a thing as a trusted Java applet? In situations where malicious attackers cannot directly exploit client-side vulnerabilities on the targeted host, they will turn to social engineering tricks, like legitimate-looking Java Applets, which will on the other hand silently download the malicious payload of the attacker, once the [...]

Cisco releases ‘Cisco Global Threat Report’ for 4Q11

By Dancho Danchev Cisco Systems, recently announced the release of ’Cisco Global Threat Report’ for 4Q11, containing threat intelligence based on Cisco’s observation of the malicious threat landscape. Key summary points:

A peek inside the uBot malware bot

By Dancho Danchev Participants in the dynamic cybercrime underground ecosystem are constantly working on new cybercrime-friendly releases in the form of malware bots, Remote Access Tools (RATs) and malware loaders. Continuing the “A peek inside…” series, in this post I will profile yet another DIY (do-it-yourself) malware bot, available at the disposal of cybercriminals at [...]

Researchers intercept a client-side exploits serving malware campaign

By Dancho Danchev Security researchers from Webroot have intercepted a currently active, client-side exploits-serving malicious campaign that has already managed to infect 18,544 computers across the globe, through the BlackHole web malware exploitation kit. More details:

How phishers launch phishing attacks

By Dancho Danchev Just like in every other industry, participants in the cybercrime ecosystem are no strangers to the concept of standardization. Standardization results in efficiencies, which on the other hand results in economies of scale. In this case, malicious economies of scale. Just how easy is it to launch a phishing attack nowadays? What tools, [...]

A peek inside the Umbra malware loader

By Dancho Danchev The thriving cybercrime underground marketplace has a lot to offer. From DIY botnet builders, DIY DDoS platforms, to platforms for executing clickjacking and likejacking campaigns, next to drive-by malware attacks, the ecosystem is always a step ahead of the industry established to fight back. Continuing the “A peek inside…” series, in this [...]

How malware authors evade antivirus detection

By Dancho Danchev Aiming to ensure that their malware doesn’t end up in the hands of vendors and researchers, cybercriminals are actively experimenting with different quality assurance processes whose objective is to increase the probability of their campaigns successfully propagating in the wild without detection. Some of these techniques include multiple offline antivirus scanning interfaces [...]

Inside AnonJDB – a Java based malware distribution platforms for drive-by downloads

by Dancho Danchev With the even decreasing prices of underground tools and services, thanks to the commoditization of these very same market items, the price for renting a botnet, or purchasing access to already infected hosts, is constantly decreasing. Although the majority of cybercriminals are actively exploiting end and corporate users while using client-side vulnerabilities [...]

Zappos.com hacked, 24 million users affected

by Dancho Danchev According to an internal memo issued by Zappos, the shoe-and-apparel-selling division of Amazon has been breached by unknown cyber attackers, leading to the compromised accounts of over 24 million users. The company has indicated that names, email addresses, mailing addresses, and the last four digits of customer’s credit card numbers have been [...]

Inside a clickjacking/likejacking scam distribution platform for Facebook

by Dancho Danchev How would you convert Facebook users into slaves participating in clickjacking and likejackings scams, next to using them to spamvertise your latest event promotion message? Presumably by using one of the clickjacking/likejacking distribution platforms promising 100 slaves per day that I will profile in this post.

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