New trojan program squashes adware
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A new Trojan horse program that attacks and removes troublesome advertising software, known as "adware," is circulating on the Internet, according to antivirus company Symantec Corp.
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Three new MyDoom variants have been found in the wild that contain not only malicious code but a plea for a job. MyDoom U, V and W attempt to download a Trojan called Surila onto users&#39; computers, which would
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Some prompts and websites that download browser plug-ins are turning out to be fronts for malicious programing.
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Over the past month, a new type of malicious software has emerged, using a decades-old technique to hide itself from antivirus software.
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A new Trojan program is targeting unwitting users' bank data by intercepting account information before it is encrypted and sending it to a central attacker database.
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TechWeb - Symantec is warning PC users about a new Trojan horse that terminates adware on a person's computer, but also plays dirty tricks.
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New version of mass-mailing worm, discovered Friday, tries to disable defenses on destination PCs.
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Program isn't entirely benevolent: it also downloads files to infected PCs.
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A malicious email purporting to offer a link to download Lycos&#39; controversial spam busting screensaver is infecting users with a Trojan - proving that the fall out from the botched and now ditched service will continue to cause users pain.
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Clicking the fraudulent update could install malicious code on your desktop.
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An ingenious new trojan is hijacking PCs to send SMS-based spam to mobile phones. After a PC has been infected, the Delf-HA trojan contacts a website for details on which spam campaign to run and then randomly
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Unpatched Windows machines are vulnerable to latest adware attack
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A new worm has surfaced affecting the AOL Instant Messenger network, security firm FaceTime reported this week. The malware disguises itself as a JPEG image to deliver a Trojan horse onto a PC when executed.
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A new worm is making the rounds, attacking some business computers through a known -- and already patched -- flaw in a popular antivirus software suite from security firm Symantec.
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A program promoted to Mac formers reportedly routes Mac users to phishing lures and serves adult-oriented ads. The Trojan may be the first professional attempt to target OS X users.
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Misdirection ruse Security researchers have identified a Trojan that hijacks Google text advertisements, replacing them with "ads" from a different provider that are likely to be laced with spyware.â¦
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Over the past month, a new type of malicious software has emerged, using a decades-old technique to hide itself from antivirus software.The malware, called Trojan.Mebroot by Symantec, installs itself on the first part of the computer&#39;s hard drive to be read on startup, then makes changes to the Windows kernel, making it hard for security software to detect it.Criminals have been installing Trojan.Mebroot, known as a master boot record rootkit, since mid-December, and were able to infect nearly 5,000 users in two separate attacks, staged on Dec. 12 and Dec. 19, according to Verisign&#39;s iDefense Intelligence Team. In order to install the software on a victim&#39;s computer, attackers first lure them to a compromised Web site, which then launches a variety of attacks against the victim&#39;s computer in hopes of finding a way to run the rootkit code on the PC.Once installed, the malware gives attackers control over the victim&#39;s machine.The group behind this latest rootkit is the same one responsible for the Torpig Trojan, and it is believed to have already installed more than 250,000 Trojan programs, iDefense said in a report on the rootkit published Monday.The interesting thing about Trojan.Mebroot is that it installs itself on the master boot record (MBR). This is the first sector of the computer&#39;s hard drive and it is the place the computer goes to first whenever it wants to boot up the operating system. &quot;Basically, if you can control the MBR, you can control the operating system and therefore the computer it resides on,&quot; wrote Symantec researcher Elia Florio in a blog posting on Trojan.Mebroot.The criminals are using several different versions of this attack code, some of which are not currently being detected by some antivirus products, iDefense said.&quot;At the moment the AV detection is hit and miss across the board, however in the last day a number of vendors have added detection for it already,&quot; said Andrew Storms, director of security operations with nCircle Network Security. &quot;As for penetration, so far many people are showing it as having a low overall distribution. The concern is that the group which may be preparing to distribute the rootkit is well-prepared.&quot;Malicious software that infected the master boot record was common during the MS-DOS era, but it has not been used much in attacks in recent years.In 2005, however, researchers at eEye Digital Security gave a talk at the Black Hat security conference, showing how a rootkit could hide itself on the MBR. This Trojan.Mebroot software is derived from that code, iDefense said.Getting this kind of malicious software to work reliably is a technical challenge, and there have generally been easier ways for the bad guys to take over PCs in recent years, said Marc Maiffret, an independent security researcher who was chief technology officer at eEye when the code was first developed.Attackers were given a hand last year, however, when researchers at NV Labs published a proof of concept MBR rootkit.Maiffret said that while we may soon see more of these MBR rootkits, &quot;it won&#39;t take long for all the antivirus companies to react.&quot;&quot;It&#39;s not some new attack vector that&#39;s going to be hard to prevent,&quot; he said. &quot;It&#39;s just something that people haven&#39;t really paid attention to.&quot;