How do I know if I have a virus

[Sirtokalott]

I use Live Messenger and a file sent to me was blocked. I have a wireless
adapter and connect to my neighbours router (yes she gave me the access code)
and I ussualy have a wireless connection logo in the system tray. When I
started up the pc the other night I had an extra icon showing a cable
connection to another computer. I also now have a modem installed in device
manager. I think it is my neighbours computer which I am connecting to but
aint to sure as neither of us is experts. The pc is also running much slower
now. I'd love to know of anyway of identifying a deliberate attack from
someone. Here's what the modem log says.

04-06-2008 21:59:19.375 - File: C:\WINDOWS\system32\tapisrv.dll, Version
5.1.2600
04-06-2008 21:59:19.375 - File: C:\WINDOWS\system32\unimdm.tsp, Version
5.1.2600
04-06-2008 21:59:19.375 - File: C:\WINDOWS\system32\unimdmat.dll, Version
5.1.2600
04-06-2008 21:59:19.375 - File: C:\WINDOWS\system32\uniplat.dll, Version
5.1.2600
04-06-2008 21:59:19.421 - File: C:\WINDOWS\system32\drivers\modem.sys,
Version 5.1.2600
04-06-2008 21:59:19.421 - File: C:\WINDOWS\system32\modemui.dll, Version
5.1.2600
04-06-2008 21:59:19.421 - File: C:\WINDOWS\system32\mdminst.dll, Version
5.1.2600
04-06-2008 21:59:19.421 - Modem type: Communications cable between two
computers
04-06-2008 21:59:19.421 - Modem inf path: mdmhayes.inf
04-06-2008 21:59:19.421 - Modem inf section: M2700
04-06-2008 21:59:19.421 - Matching hardware ID: pnpc031
04-06-2008 21:59:19.453 - 19200,8,N,1, ctsfl=1, rtsctl=2
04-06-2008 21:59:19.453 - Initializing modem.
04-06-2008 21:59:19.453 - Waiting for a call.
04-06-2008 21:59:19.484 - 19200,8,N,1, ctsfl=1, rtsctl=2
04-06-2008 21:59:19.484 - Initializing modem.
04-06-2008 21:59:19.484 - Dialing.
04-06-2008 21:59:19.500 - Send: CLIENT
04-06-2008 21:59:21.500 - Timed out waiting for response from modem
04-06-2008 21:59:21.500 - Failed to send command because of WriteFile()
Failure, Error=000003e3.
04-06-2008 21:59:21.515 - Send: CLIENT
04-06-2008 21:59:23.515 - Timed out waiting for response from modem
04-06-2008 21:59:23.515 - Failed to send command because of WriteFile()
Failure, Error=000003e3.
04-06-2008 21:59:23.531 - Send: CLIENT
04-06-2008 21:59:25.531 - Timed out waiting for response from modem
04-06-2008 21:59:25.531 - Failed to send command because of WriteFile()
Failure, Error=000003e3.
04-06-2008 21:59:25.546 - Send: CLIENT
04-06-2008 21:59:27.546 - Timed out waiting for response from modem
04-06-2008 21:59:27.546 - Failed to send command because of WriteFile()
Failure, Error=000003e3.
04-06-2008 21:59:27.546 - Hanging up the modem.
04-06-2008 21:59:27.546 - Hardware hangup by lowering DTR.
04-06-2008 21:59:29.546 - A timeout has expired waiting to comm event to
occour.
04-06-2008 21:59:29.546 - 19200,8,N,1, ctsfl=1, rtsctl=2
04-06-2008 21:59:29.546 - Initializing modem.
04-06-2008 21:59:29.546 - Waiting for a call.
04-06-2008 21:59:29.546 - Session Statistics:
04-06-2008 21:59:29.546 - Reads : 0 bytes
04-06-2008 21:59:29.546 - Writes: 0 bytes

I certainly didn't set this up, please help

 

[Allan]

I use Live Messenger and a file sent to me was blocked. I have a wireless
adapter and connect to my neighbours router (yes she gave me the access
code)
and I ussualy have a wireless connection logo in the system tray. When I
started up the pc the other night I had an extra icon showing a cable
connection to another computer. I also now have a modem installed in
device
manager. I think it is my neighbours computer which I am connecting to
but
aint to sure as neither of us is experts. The pc is also running much
slower
now. I'd love to know of anyway of identifying a deliberate attack from
someone.

Disconnect from your neighbor's wireless connection and scan for malware.
http://www.trendmicro.com/download/sysclean.asp
http://www.trendmicro.com/download/pattern.asp
Be sure to download the anti-spyware pattern file as well as the anti-virus
pattern file. The anti-spyware file is "ssapiptn.da5".
Follow the instructions given and place the anti-spyware patterns file in
the same folder as the other downloads.
If it cleans your computer find another connection for future use. Your
neighbor may not be a very good network security administrator.

 

[Allan]

I use Live Messenger and a file sent to me was blocked. I have a wireless
adapter and connect to my neighbours router (yes she gave me the access
code)
and I ussualy have a wireless connection logo in the system tray. When I
started up the pc the other night I had an extra icon showing a cable
connection to another computer. I also now have a modem installed in
device
manager. I think it is my neighbours computer which I am connecting to
but
aint to sure as neither of us is experts.

Use another connection besides your neighbor's to download the Trend Micro
Sysclean package. If you can use dialup, that will work for now.