win32 bho-kd

Viruses and worms
1

the file that is infected is windows/system32/adsn.dll…it must be connected to Internet explorer because when i start the browser avast pops up with it…I have done a boot scan and tried to delete it i get access denied…i have tried to move it to chest …it wont move…HELP!!!..LOL

2

If a virus is replicant (coming and coming again), you could follow the general cleaning procedure. Take a look, specially, into antirootkit step.

  1. Disable System Restore on Windows ME or Windows XP. System Restore cannot be disabled on Windows 9x and it’s not available in Windows 2k. After boot you can enable System Restore again after step 3.

  2. Clean your temporary files. You can use CleanUp or the Windows Advanced Care features for that.

  3. Schedule a boot time scanning with avast. Start avast! > Right click the skin > Schedule a boot-time scanning. Select for scanning archives. Boot. Other option is scanning in SafeMode (repeatedly press F8 while booting).

  4. It will be good if you download, install, update and run AVG Antispyware. Some users recommend SUPERantispyware, Spyware Terminator and/or a-squared (take care about false positives).
    If any infection is detected, better and safer is send the file to Quarantine than to simple delete than.

  5. If you still detecting any strange behavior or even you’re sure you’re not clean, maybe it will be good to test your machine with anti-rootkit applications. I suggest AVG or Trend Micro RootkitBuster (for XP/Vista). For XP: Panda (for XP).

  6. Also, if you still detecting strange behaviors or you want to be sure you’re clean, maybe making a HijackThis log to post here and, specially, scan and submit to on-line analysis the RunScanner log would help to identify the problem and the solution.

  7. After you’re clean, use the immunization of SpywareBlaster or, which is better, the Windows Advanced Care features of spyware/adware cleaning and removal.

  8. Finally, when you’re clean, check for insecure applications with Secunia Software Inspector to update insecure applications and avoid reinfection.

3

This BHO seems to be the critter of the day. :wink:

Download superantispyware

First update SAS Then Boot into safe mode and setup SAS as follows.

Under Configuration and Preferences, click the Preferences button.
Then click the Scanning Control tab.

Under Scanner Options make sure the following are checked

  • CHECK ALL BOXES

Return to the main page by clicking close on that screen. On the main screen, under Scan for Harmful Software click Scan your computer. On the left check C:\Fixed Drive.(and other fixed drives)

Under Complete Scan, choose Perform Complete Scan.
· Click Next to start the scan.

When the scan is done, quarentine everything found . Reboot if asked. You can post the log in your next reply if you wish.

4

Hi oldman and wilmot3,

For adsn.dll consider the malware construction mentioned here:
http://www.geocities.jp/kiskzo/replaced.mswsock.dll.html

polonus