In September 2011, security companies first noticed a new malware scam for OS X, which posed as a fake Adobe Flash installer, and hence became known as Flashback. Unlike prior scams, this malware took on some new approaches to tricking users by infecting common browsers, disabling Apple's XProtect system, and eventually morphing into a Java-based exploit that resulted in approximately 600,000 Macs being infected worldwide.
Following news of the new adware Web plug-in Trojan found to be affecting OS X systems, Apple has released an XProtect malware definitions update to protect anyone who stumbles across it.
The Trojan, called Yontoo, is initially disguised as a media player or download manager plug-in and distributed on underground file-sharing and movie trailer Web sites. When installed it pretends to be a player called Twit Tube but installs the Yontoo plug-in. This plug-in will work in all Web browsers to track your browsing behaviors and then present ads on legitimate Web sites.
Unlike other malware that can hide itself … Read more
Security company Dr. Web is reporting on a new adware Trojan attack that is targeting Mac users, where malicious Web sites will trick users into installing a plugin that will track your browsing and display ads to you.
The malware, called "Yontoo," will be first encountered as a media player, download manager, or other plug-in requirement for viewing contents on some maliciously crafted Web sites disguised as sources for file sharing and movie trailers. When the plug-in prompt is clicked, you're redirected to a site that downloads the Trojan installer and requires you to run it. The … Read more
A new Mac OS X Trojan is making the rounds, installing an adware plug-in that renders ads on Web pages to generate revenue for its author.
Dubbed Trojan.Yontoo.1, it is the most prominent of an increasing number of adware Trojans making the rounds, according to Russian antivirus company Dr. Web, the same company that discovered the Flashback virus last year.
"Criminals profit from affiliate ad network programs, and their interest in users of Apple-compatible computers grows day by day," Dr. Web said yesterday in a statement. "Recently discovered, Trojan.Yontoo.1 can serve as a … Read more
Java cannot seem to get a break. Only a few days after patching the last zero-day vulnerability, two more exploits are being found that make use of the runtime. One, as noted by Kaspersky, is a recent exploit of the latest runtime's attempts to install a McRAT executable by overwriting memory in the JVM that will trigger the executable to run.
Once installed, the McRAT malware will attempt to contact command and control servers and copy itself into dll files in Windows systems.
NBC's Web site is up and running again after being knocked offline by a cyberattack for several hours yesterday.
The NBC site was the victim of a form of malware known as the Citadel Trojan. This specific strain targets companies in an attempt to steal usernames, passwords and other sensitive data. People who visit sites infected by the trojan can find their own PCs infected as well.
In the past, Citadel typically attacked banks and financial firms but has since expanded its reach to a wider range of organizations.
NBC, which is part of cable giant Comcast, is still trying to figure out how the attack occurred, … Read more
Malware continues to grow, not just in volume but in sophistication, according to a new report from McAfee.
Released today, the security vendor's fourth-quarter 2012 Threats Report found that more organizations are being targeted by more clever cyberattacks.
The number of trojans designed to steal passwords rose 72 percent last quarter. Some of these trojans are part of "customized" threats, while others are packaged with more "off-the-shelf" forms of malware. As one example, the Citadel trojan was specifically designed to hit financial services companies.
The wave of distributed denial of service attacks that hit U.S. banks in October was next-to-nothing compared to what could happen if cybercriminals actually carry through with their plans for next year.
According to a report (PDF) released today by McAfee Labs, an impending attack on U.S. financial institutions -- dubbed Project Blitzkrieg -- isn't only a possibility, it's a "credible threat."
"McAfee Labs believes that Project Blitzkrieg is a credible threat to the financial industry and appears to be moving forward as planned," the report reads. "Although Project Blitzkrieg hasn'… Read more
The Russian security firm Dr. Web has uncovered another malware attempt on OS X systems that tries to exploit users with SMS fraud.
The new malware is a Trojan horse, dubbed "Trojan.SMSSend.3666," and is part of a family of Trojan malware for Windows and other platforms that have affected Windows users for years.
As with all Trojans, these pose as legitimate programs that are made available for download from a number of underground Web sites, with this current one for OS X appearing to be an installer for a program called VKMusic 4, a utility whose … Read more
Cybercriminals gangs are creating a surge in ransomware, says a new report from Symantec.
Ransomware is a type of malware best described as an online extortion racket. Malware locks or disables your PC in some way and then demands payment in the form of a "fine" to render your PC usable again. Like most scams, the ransomware message claims to come from a legitimate organization, such as the government or a public corporation, to try to convince victims that they did something wrong to incur the fine.
But paying the fine does nothing since the initial malware remains … Read more