Virus Encyclopedia
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MSNworm.CY | |
Threat Level Damage Distribution |
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Common name: | MSNworm.CY |
Technical name: | W32/MSNworm.CY.worm |
Threat level: | Medium |
Type: | Worm |
Effects: |
It spreads and affects other computers.
It captures keystrokes.
It awaits remote-control orders to carry out.
It uses stealth techniques to avoid being detected by the user.
It uses anti-monitoring techniques in order to prevent it being detected by antivirus companies.
It spreads
, through P2P programs, through instant messaging.
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Affected platforms:
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Windows 2003/XP/2000/NT/ME/98/95 |
First detected on: | Feb. 6, 2008 |
Detection updated on: | Feb. 6, 2008 |
Statistics | No |
Proactive protection: | Yes, using TruPrevent Technologies
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Brief Description | |
MSNworm.CY is a worm that spreads by copying itself, without infecting other files. It captures certain information entered or saved by the user, with the corresponding threat to privacy:
keystrokes, in order to obtain information for accessing online banking services, passwords and other confidential information. It reduces the security level of the computer:
it awaits remote-control orders received through
IRC. It uses stealth techniques to avoid being detected by the user: - It deletes the original file from which it was run once it is installed on the computer.
It uses several methods in order to avoid detection by antivirus companies: - It terminates its own execution if it detects that it is being executed in a virtual machine environment, such as VMWare or VirtualPC.
MSNworm.CY uses the following propagation or distribution methods: - Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
- Peer-to-peer (P2P) file sharing programs: it makes copies of itself with enticing names in shared folders belonging to these programs. Other users of this type of networks then voluntarily download and run the infected files.
- Instant messaging: it sends links pointing to a copy of itself to all users included in the infected user's contacts list.
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