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Suspect virus won't allow internet connection


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4 replies to this topic

#1 shorn

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Posted 03 September 2012 - 06:13 PM

I have a Toshiba running Windows 7. It stared slowing down and now it will connect to the wireless network, but I don't have internet. I also tried using the LAN with the wireless turned off, same result. When that didn't work I tried an external device--still no go. Then I tried it in safe mode, and I was able to connect to the internet via the LAN. So I ruled out hardware problems. I suspect a virus, but have no clue which one, or where to even start. Any help will be appreciated. Thank you!

Sarah

Edited by hamluis, 04 September 2012 - 12:53 PM.
Moved from Win 7 to Am I Infected - Hamluis.


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#2 Veyf

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Posted 04 September 2012 - 03:25 AM

Hello there,

At face value it is hard to tell if this is a virus infection or simply a network issue.

Let's do a quick test to see what state your network connection is in.

Open up a command prompt by clicking the "start button" and then typing cmd.
You should get one program result which has a logo of a black box with "C:\" inside it.

Once you have this open please type the following in order the order below:

  • tracert www.google.com
  • tracert 173.194.67.103
  • tracert www.bleepingcomputer.com (Let's try a second address just in case)
  • tracert 208.43.87.2

Once this is done please right click on the command prompt window and click "Select all", then right click again and select "Copy".

When you have this information please paste it here and we should then have an idea where the fault in connectivity is.

#3 shorn

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Posted 05 September 2012 - 12:29 PM

Thank you for the reply. I will post as soon as I am able to do this. We are down a computer and the kids homework comes first. :-)

Sarah

#4 shorn

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Posted 05 September 2012 - 05:54 PM

Ok, I ran Windows Defender Offline. It found no viruses, but not the laptop will connect to the internet. I should of mentioned that all of the other many devices have been able to connect to the internet no problem. Here are the results of the tracert:

Microsoft Windows [Version 6.1.7600]
Copyright © 2009 Microsoft Corporation. All rights reserved.

C:\Users\Porter>tracert www.google.com

Tracing route to www.l.google.com [74.125.227.115]
over a maximum of 30 hops:

1 585 ms 1 ms <1 ms 192.168.1.1
2 49 ms 50 ms 47 ms adsl-75-14-15-254.dsl.hrlntx.sbcglobal.net [75.1
4.15.254]
3 49 ms 48 ms 48 ms 69.150.68.66
4 46 ms 46 ms 46 ms 12.83.49.90
5 96 ms 65 ms 64 ms gar23.dlstx.ip.att.net [12.122.85.73]
6 * * * Request timed out.
7 177 ms 182 ms 286 ms 72.14.233.65
8 109 ms 107 ms 111 ms 209.85.240.91
9 64 ms 67 ms 62 ms dfw06s16-in-f19.1e100.net [74.125.227.115]

Trace complete.

C:\Users\Porter>tracert 173.194.67.103

Tracing route to wi-in-f103.1e100.net [173.194.67.103]
over a maximum of 30 hops:

1 1 ms <1 ms <1 ms 192.168.1.1
2 89 ms 90 ms 94 ms adsl-75-14-15-254.dsl.hrlntx.sbcglobal.net [75.1
4.15.254]
3 111 ms 111 ms * 69.150.68.65
4 257 ms 99 ms 101 ms 12.83.49.88
5 128 ms 140 ms 170 ms gar22.dlstx.ip.att.net [12.122.85.65]
6 * * * Request timed out.
7 73 ms 84 ms 89 ms 72.14.233.65
8 180 ms 185 ms 176 ms 72.14.237.219
9 210 ms 194 ms 189 ms 209.85.240.83
10 203 ms 198 ms 194 ms 72.14.239.67
11 191 ms 189 ms 194 ms 72.14.235.13
12 167 ms 185 ms 198 ms 72.14.239.92
13 233 ms 240 ms 239 ms 216.239.46.219
14 217 ms 223 ms 223 ms 72.14.235.171
15 244 ms 248 ms 257 ms 209.85.253.20
16 270 ms 276 ms 275 ms 209.85.250.167
17 * * * Request timed out.
18 304 ms 178 ms 220 ms wi-in-f103.1e100.net [173.194.67.103]

Trace complete.

C:\Users\Porter>tracert www.bleepingcomputer.com

Tracing route to www.bleepingcomputer.com [208.43.87.2]
over a maximum of 30 hops:

1 223 ms 1 ms 1 ms 192.168.1.1
2 151 ms 157 ms 162 ms adsl-75-14-15-254.dsl.hrlntx.sbcglobal.net [75.1
4.15.254]
3 169 ms 148 ms 76 ms 69.150.68.65
4 115 ms 182 ms 89 ms 12.83.54.32
5 156 ms 157 ms 163 ms gar25.dlstx.ip.att.net [12.122.85.233]
6 173 ms 180 ms 184 ms ae-9.r01.dllstx04.us.bb.gin.ntt.net [129.250.8.2
37]
7 196 ms 192 ms 113 ms ae-0.softlayer.dllstx04.us.bb.gin.ntt.net [157.2
38.224.230]
8 143 ms 139 ms 149 ms ae1.bbr01.tl01.atl01.networklayer.com [173.192.1
8.135]
9 183 ms 185 ms 189 ms ae0.bbr01.eq01.wdc02.networklayer.com [173.192.1
8.152]
10 198 ms 204 ms 213 ms ae0.dar01.sr01.wdc01.networklayer.com [173.192.1
8.197]
11 229 ms 225 ms 143 ms po1.fcr01.sr01.wdc01.networklayer.com [208.43.11
8.134]
12 www.bleepingcomputer.com [208.43.87.2] reports: Destination host unreachab
le.

Trace complete.

C:\Users\Porter>tracert 208.43.87.2

Tracing route to www.bleepingcomputer.com [208.43.87.2]
over a maximum of 30 hops:

1 1 ms <1 ms 1 ms 192.168.1.1
2 147 ms 144 ms 153 ms adsl-75-14-15-254.dsl.hrlntx.sbcglobal.net [75.1
4.15.254]
3 161 ms 166 ms 170 ms 69.150.68.65
4 94 ms 95 ms 81 ms 12.83.54.32
5 125 ms 76 ms 85 ms gar25.dlstx.ip.att.net [12.122.85.233]
6 89 ms 94 ms 99 ms ae-9.r01.dllstx04.us.bb.gin.ntt.net [129.250.8.2
37]
7 115 ms 121 ms 117 ms ae-0.softlayer.dllstx04.us.bb.gin.ntt.net [157.2
38.224.230]
8 151 ms 167 ms 164 ms ae1.bbr01.tl01.atl01.networklayer.com [173.192.1
8.135]
9 191 ms 194 ms 164 ms ae0.bbr01.eq01.wdc02.networklayer.com [173.192.1
8.152]
10 203 ms 212 ms 216 ms ae0.dar01.sr01.wdc01.networklayer.com [173.192.1
8.197]
11 130 ms 131 ms 143 ms po1.fcr01.sr01.wdc01.networklayer.com [208.43.11
8.134]
12 www.bleepingcomputer.com [208.43.87.2] reports: Destination host unreachab
le.

Trace complete.

C:\Users\Porter>

#5 narenxp

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Posted 06 September 2012 - 08:24 AM

Sorry,we missed your topic

Boot into safemode with networking

Download

TDSSkiller

Launch it.Click on change parameters-Select TDLFS file system

Click on "Scan".Please post the LOG report(log file should be in your C drive)

Do not change the default options on scan results

Download

aswMBR

Launch it, allow it to download latest Avast! virus definitions
Click the "Scan" button to start scan.After scan finishes,click on Save log

Post the log results here

Download

ESET online scanner

Install it

Click on START,it should download the virus definitions
When scan gets completed,click on LIST of found threats

Export the list to desktop,copy the contents of the text file in your reply

Download

mini toolbox

Checkmark following boxes:

Flush DNS
Report IE Proxy Settings
Reset IE Proxy Settings
Report FF Proxy Settings
Reset FF Proxy Settings
List content of Hosts
List IP configuration
List Winsock Entries
List last 10 Event Viewer log
List Installed Programs
List Users, Partitions and Memory size

Click Go and post the result.

Edited by narenxp, 06 September 2012 - 08:25 AM.





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