A standalone malicious program which uses computer or network resources to make complete copies of itself.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Net-Worm:W32/Kolab.QA is a worm that functions as an IRC bot, enabling an attacker to use the victim's computer as a proxy or as a tool for conducting Denial of Service (DOS) attacks.Kolab.QA can also steal information from the infected computer, download additional malware, and give the attacker partial control of the computer.
When executed, the bot copies itself to the following location:
The original file is then deleted in an attempt to hide the infection. To ensure that the malware is executed every time the computer is started, Kolab.QA creates several registry keys into the system registry.
When active, Kolab.QA attempts to connect to the following sites:
It attempts to join an IRC-channel that the bot-master operates.The site, dsn2go.com, is a legitimate service used to provide dynamic DNS for domain owners that do not have a static IP Address. The "hail" and "scorti1" accounts were not online during our investigations.The attacker can control all connected bots by issuing them commands through the IRC channel. The bot also opens a random port to listen for an incoming TCP connection.Through the backdoor, the attacker can control the system by, for example, shutting down the operating system, logging off, or rebooting the computer.The system can also be modified by alterations to services or registry entries. Files can be downloaded and executed, including new versions of the bot for it to update. Denial of Service attacks can be launched and proxy-servers can be created. To spread the worm further, the attacker can order the bots to scan IP addresses or ranges for vulnerable computers.Kolab.QA is capable of stealing information from infected computers. Information targeted by the bot includes the following: