PDA

View Full Version : Virus Services.exe gone but problem remains :(



Codex
23-09-2004, 01:08 AM
i manually removed the virus file services.exe but now all the main windows core applications and startup process's aren't starting anymore because they are depending on the services.exefile in which i pernamently deleted(woops) so can someone please help???:(

Exwesty
23-09-2004, 01:30 AM
You moved it to your recycle bin and then emptied the bin?

You could try an undelete program to recover the file assuming you haven't written a lot of data to the drive in the interim.

Other thoughts are especially as you don't state what operating system you are using is if you have XP or ME is to use the system restore facilty providing you had it turned on before hand and roll back to a suitable restore point.

Codex
23-09-2004, 01:58 AM
Windows 98SE, unfortunately no setup programs will execute either

zqwerty
23-09-2004, 02:06 AM
Codex,

I don't quite know what is going on with your computer. I have just searched my Win98SE for "services.exe" and it doesn't exist. I thought if it wasn't too big I could email it to you as a zipped file but I can't find it at all.

What say you to that?

beama
23-09-2004, 07:59 AM
have you tried scanreg/restore (to before you deleted this file it has saved me before)you have to do it from a dos session f8 boot select dos prompt only or even sfc/scannow if you havent got the 98 install cdrom The cab files are normally in c:\windows\command\options

Spacemannz
23-09-2004, 09:24 AM
Hmm this services.exe might belong to Mydoom, or a variant, a worm. With backdoor capabilities.

W32/MyDoom-O is a mass-mailing worm which spreads by emailing itself via its own SMTP engine. The worm also allows unauthorised remote access to the computer via a network. When first run the worm copies itself to either the Windows or Temp folders as java.exe and adds one of the following registry entries to ensure that the copy is run each time Windows starts:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run \JavaVM
HKCU\Software\Microsoft\Windows\CurrentVersion\Run \JavaVM
HKLM\Software\Microsoft\Windows\CurrentVersion\Run \Services
HKCU\Software\Microsoft\Windows\CurrentVersion\Run \Services
W32/MyDoom-O also creates a file named services.exe in the Windows or Temp folder and runs the file. Services.exe is the backdoor component of W32/MyDoom-O

W32/MyDoom-O searches the hard disk email addresses. The worm searches files with the extensions PL*, PH*, TX*, HT*, ASP, TBB, SHT*, WAB, ADB and DBX and the Windows address book. In addition the worm may use an internet search engine to find more email addresses. The worm will send a query to the search engine using domain names from email addresses found on the hard disk and then examine the query results, searching for more addresses. The internet search engines used by W32/MyDoom-O and the percentage chance that each is used are:

www.google.com (45%)
search.lycos.com (22.5%)
search.yahoo.com (20%)
www.altavista.com (12.5%)

When choosing addresses to send itself to W32/MyDoom-O will avoid addresses which contain any of the following strings:

mailer-d
spam
abuse
master
sample
accoun
privacycertific
bugs
listserv
submit
ntivi
support
admin
page
the.bat
gold-certs
ca
feste
not
help
foo
no
soft
site
rating
me
you
your
someone
anyone
nothing
nobody
noone
info
winrar
winzip
rarsoft
sf.net
sourceforge
ripe.
arin.
google
gnu.
gmail
seclist
secur
bar.
foo.com
trend
update
uslis
domain
example
sophos
yahoo
spersk
panda
hotmail
msn.
msdn.
microsoft
sarc.
syma
avp

The email sent by the worm has a spoofed sender.

The subject line may be blank or one of the following:

hello
hi
error
status
test
report
delivery failed
Message could not be delivered
Mail System Error - Returned Mail
Delivery reports about your e-mail
Returned mail: see transcript for details
Returned mail: Data format error
The message text of the email is constructed from a set of optional strings within the worm. The message sent is blank or similar to one of the following messages:
Dear user of <domain>
Mail server administrator of <domain> would like to inform you that
We have detected that your e-mail account has been used to send a large
amount of unsolicited e-mail messages during this recent week.
We suspect that your computer had been compromised by a recent virus and now
runs a trojan proxy server.
Please follow our instructions in the attachment file
in order to keep your computer safe.
Virtually yours
<domain> user support team.
The message could not be delivered
The original message was included as attachment
The original message was received at <time> from <address>
----- The following addresses had permanent fatal errors -----
<address>
----- Transcript of the session follows -----
... while talking to host <hostname>:
>>> MAIL From:<address>
<<< 501 User unknown
Session aborted
>>> RCPT To:<address>
<<< 550 MAILBOX NOT FOUND
The message was undeliverable due to the following reason(s):
Your message was not delivered because the destination computer was not reachable within the allowed queue period. The amount of time a message is queued before it is returned depends on local configuration parameters.
Most likely there is a network problem that prevented delivery, but it is also possible that the computer is turned off, or does not have a mail system running right now. Your message was not delivered within <number> days:
Mail server <hostname> is not responding
The following recipients did not receive this message:
<address>
Please reply to postmaster@<domain>
if you feel this message to be in error.
The attached file may be named similarly to the recipient's username or domain or using one of the following names:
readme
instruction
transcript
mail
letter
file
text
attachment
document
message
with an optional extension of DOC, TXT, HTM, HTML and a final extension of EXE, COM, BAT, CMD, SCR or PIF. The attached file may also be a zip file con

Stinger http://vil.nai.com/VIL/STINGER/ may have got rid of it for you

See if this removes the registry info

http://securityresponse.symantec.com/avcenter/FxMydoom.exe

It MIGHT fix the services prob if it removes the entries for Mydoom in the registry.

Susan B
23-09-2004, 11:34 AM
Codex: Sounds like you have a few problems there. FAQ #16 might be of some use to you. Browse down to the bottom post and scroll up to get to the "final" version.

Link to FAQs top right of this page.

Codex
23-09-2004, 01:02 PM
the 'my.doom' remover doesn't execute because all stand alone exe files and executables now depend on the execution of services.exe(the virus) :( and i can't run many applications because of this dependency. I can't run regedit to remove the startup process of 'my.doom'

Further help please?

Spacemannz
23-09-2004, 01:10 PM
Will it work in safe mode?? the mydoom.exe or regedit/anything??

Codex
23-09-2004, 01:14 PM
Well i usually use winxp pro on my other machines but i dont know how to use safe mode in win98se anymore but if sum1 tells me i'll try it

Thx

Codex

Spacemannz
23-09-2004, 01:19 PM
Same as XP. As soon as it boots press F8 down then the menu will come up. Select Safe mode

Codex
23-09-2004, 01:36 PM
I tired safe mode but noting would run just the same as Windows nrmal it said:

Windows cannot find SERVICES.EXE

This program is needed for opening files of type 'Application'

Location of SERVICES.EXE
<manual location>

Susan B
23-09-2004, 01:44 PM
Go to Start > Run, type in sfc and choose the option to Scan for altered files. You will probably need to have your Windows CD ready.

Codex
23-09-2004, 01:46 PM
I FOUND THE PROBLEM YAY!!!!!!!!!!!!
but i cant fix it :(

whats wrong is: in the file types tab in folder options the type: Applications is set yo run with SERVICES.EXE but i can't change it over without bein able to use regedit unfortunately

What program is usually associated with Applications??

Susan B
23-09-2004, 01:48 PM
Better still, see this page:

http://www.mvps.org/sramesh2k/exefile.htm

Spacemannz
23-09-2004, 01:50 PM
Hmm you should have asked in here first before you deleted services.exe. I would say you'll have to reformat the hard drive. Since if it is mydoom, it has added entries into the registry, to create this services.exe file. It think it's a part of 98, which is isnt.

Or try going to control panel/system/device manager. I cant remember if 98 has this option by after u get to device manager select view/show hidden devices. Does services.exe appear here (under non plug-and play drives)?? If so, delete it, reboot, see what happens.

Susan B
23-09-2004, 01:51 PM
> I would say you'll have to reformat the hard drive.

Codex: Try the solutions suggested on the page I linked to above first!