In the movies, the hero who rescues the town from bandits usually isn't the guy you want sticking around to run the post office and the general store. The antivirus industry isn't so different. Some products specialize in rousting the bandits, then riding off into the sunset leaving your PC clean and ready for a different product's ongoing protection. The free Comodo Cleaning Essentials 6 is one such, and it does a very good job.
Some malware writers code their creations to actively fight installation of antivirus software. Comodo Cleaning Essentials foils such attacks with a simple countermeasure; it doesn't require installation. Download the tool, unzip it, and launch it?that's all.
Unhindered Action
The similar Malwarebytes Anti-Malware 1.70 does require installation, but it managed to install on all twelve of my nasty, malware-infested test systems without a hitch. As noted, all I had to do with Comodo was unzip the downloaded file to a folder on the desktop.
When you launch Comodo it spends a moment initializing and checking out the system, then offers you the choice of a "smart," full, or custom scan. Whichever scan you choose, Comodo goes on to download the latest updates. On one test system, malware interfered with the update process. A full scan solved that problem, however, and when I tried a second scan the update proceeded without a hitch.
The term rootkit refers to a program that hooks deeply into Windows to hide its own presence. For example, a rootkit may redirect the standard Windows function that lists files in a folder and delete its own files from the list. After the update, Comodo automatically reboots the system and starts a scan as soon as Windows loads, before any rootkit-based threats can sink their hooks into the system.
This almost proved problematic on a test system that can only function in Safe Mode due to a ransomware infestation. When Comodo rebooted it to normal Windows, the ransomware took over. It turned out, though, that Comodo was working away in the background and managed to complete a full scan despite malware interference.
Once the scan finishes, Comodo presents its findings in a tree structure, with individual malware traces organized below the malware threat to which they correspond. Like Malwarebytes, it also fixes malicious changes to system settings such as disabling Task Manager or Command Prompt. After you give permission, it cleans the found traces, reboots again, and reports on whether everything came out right.
In most cases, the final report listed every malware traces as properly cleaned, but for a few it reported "Failed." If you find any such items in the final report, you'll need to pursue other options for cleaning. Typically, a session with Comodo Cleaning Essentials is the precursor to installing a full-scale antivirus or security suite. Once you've installed ongoing security, run a scan right away.
Source: http://feedproxy.google.com/~r/ziffdavis/pcmag/~3/IdnOn0Q0bts/0,2817,2415346,00.asp
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