Alcan.a and no internet connectivity

Discussion in 'Malware Help (A Specialist Will Reply)' started by mccerio, Feb 7, 2006.

  1. mccerio

    mccerio Private E-2

    infection with alcan.a has apparently killed my home laptop's internet connectivity, so I'm posting this from my work laptop.

    the home laptop seems to be running OK, but I'm guessing there are a few lingering things. the inability to connect to the net is troubling. error message is that the network cannot assign an IP address to the computer. I wonder if alcan.a ruined some system files and I need to reinstall XP?

    my HJT log (safe mode) is attached and thanks in advance for all replies... I could really use some help.

    - Mike
     

    Attached Files:

  2. bjgarrick

    bjgarrick MajorGeeks Admin - Malware Expert

    What notified you of Alcan.a?
     
  3. mccerio

    mccerio Private E-2

    I think ad-aware said it picked up a bunch of alcan.a infected files after I ran a scan. I thought at first I had something named alcra.b or close to that... can't recall. does my HJT log suggest something else?

    I have tried to clean the latop as best I can, but the lack of internet connectivity is really giving me a headache... no clue what happened or if the virus is still mucking things up.
     
  4. bjgarrick

    bjgarrick MajorGeeks Admin - Malware Expert

    Your HJT log looks good, this particular infection is a P2P WORM. It adds .com files inside multiple zip files. Let's start with SS and then dig a little..

    Please see the below thread on how to install and run Spy Sweeper.
     
  5. mccerio

    mccerio Private E-2

    spy sweeper found the following adware, then stalled at file 191,909:

    searchbarhtml
    apropos

    the file it got stuck on is:

    c:\windows\system32\search.html

    sounds fishy. any thoughts?
     
  6. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    First try running Spy Sweeper again after booting in safe mode. If it does not run then run this: AproposMedia Fix

    Then install HijactThis properly as per step 7 of the READ & RUN ME. You have it here:
    C:\Documents and Settings\Cerio Family\Desktop\hijackthis\HijackThis.exe

    which is exactly where we request it not be installed.

    Then also attach a new HJT log but from normal boot mode. Your first log was from safe mode.
     
  7. mccerio

    mccerio Private E-2

    seems to be fixed now except for no internet connection

    I re-ran everything as you suggested and had a malware expert look at my logs (his "day job" is bouncing at a strip club, LOL).

    he said my HJT log is clean and he also had me use killbox to kill some processes and then he fixed something in regedit.

    in any case, we think a new install of XP will be necessary. sucks... but at least the machine is clean.

    thanks for everyone's input.
     
  8. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Re: seems to be fixed now except for no internet connection

    You are not helping us to help you when you do not attach the logs from the tools we ask you to run.

    Right now I still do not think a reinstall is required. You may just have to setup the network connection again. Perhaps the PC is no longer set for DHCP. Do you use a router? What kind of connection do you have (dial-up, DSL, cable)?
     
  9. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Re: seems to be fixed now except for no internet connection

    If you are still having problems with Alcan.a, run the steps in the below:

    Alcan.a Removal

    Let me know if this helps.
     
  10. mccerio

    mccerio Private E-2

    my apologies for not posting an updated log, will do so tonight.

    RE: alcan.a BFU: I ran that yesterday before posting that I thought I had a clean log. happy to run it again and see what turns up.

    RE: internet connectivity: at my wit's end on this, have tried many things:

    1. ipconfig refresh / renew

    2. editing stuff in regedit

    3. lspfix.exe

    4. winsockxpfix.exe (I think that was the name...)

    5. microsoft's fix where you go in and manually edit the registry under things like LOCALKEY, CURRENTUSER, whatever. checked all the library paths and binary stuff for modifications and made sure the number of entries matched up with the catalog entries or something like that

    6. checked the firewall setting, sygate and XP.

    7. manually set connections to DHCP enabled or whatever, and auto detect IP, etc.

    my connection: cable modem, broadband, ethernet. no router.

    hope this is useful and thanks for your time and effort. will report back on logs tonight.
     
  11. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    On what site did you run this. It was not here based on all your messages. And it was only made into a procedure here yesterday late in the day.
     
  12. mccerio

    mccerio Private E-2

    not sure what site it came from. my colleague brought it with him with a bunch of other tools he had on one of those little pen drives. he said it was - and I quote - "the alcan worm brute force uninstaller". we ran that first thing after he got to my place.

    perhaps he had the wrong tool or one with a misleading name?

    again, will report back later tonight.
     
  13. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    So then are you saying you no longer have an Alcan.a infection?
     
  14. mccerio

    mccerio Private E-2

    problem is now resolved. there was a corrupt file of some kind in windows so a reinstall was apparently necessary, or at least easier than trying to pinpoint the problematic file.

    thanks for everyone's help on this. feel free to close the thread out.
     
  15. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    If there was a corrupt file that Windows required, running sfc /scannow from the command prompt may have simply fixed it without a reinstall.

    But a clean install is not going to hurt you. Make sure you work thru the below:

    How to Protect yourself from malware!
     

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