Virus Database

I-Worm.Lovgate.a

Description I-Worm.Lovgate.a

I-Worm.Lovgate.a (aka Supnot.a) is a worm virus spreading via the Internet as an attachment to infected emails. The worm also spreads through local area networks and has a backdoor routine. There are several worm variants known which are very similar to each other.
The worm itself is a Windows PE EXE file, written in Microsoft Visual C++, and compressed by AsPack.
The compressed file size is about 85K, decompressed size - about 200K.
The worm activates from infected email only when a user clicks on the attached file. While spreading through local area networks the worm tries to run its remote copies by using WinNT functions.
When run the worm installs itself to the system, runs its spreading and backdoor routines.
Installing
While installing the worm copies itself to the Windows system directory under several names and registers these files in the system registry auto-run key (under WinNT) and/or in the "run" command in the WIN.INI file (under Win9x).
Worm copies have the following names:
rpcsrv.exe
syshelp.exe
winrpc.exe
WinGate.exe
WinRpcsrv.exe
The registry keys are:
[HKCUSoftwareMicrosoftWindows NTCurrentVersionWindows]
"Run"="rpcsrv.exe"

[HKLMSoftwareMicrosoftWindowsCurrentVersionRun]
"syshelp"="%SystemDir%syshelp.exe"

[HKLMSoftwareMicrosoftWindowsCurrentVersionRun]
"WinGate initialize"="%SystemDir%WinGate.exe -remoteshell"
"Module Call initialize"="RUNDLL32.EXE reg.dll ondll_reg"

[HKCR xtfileshellopencommand]
"winrpc.exe %1"
Spreading: email
To spread in emails 'supnot' uses two different methods:
1. The worm looks for "*.HT*"-files (HTM, HTML) in the current directory, Windows directory and the "My Documents" directory (including subdirectories as well), scans them for email-like text strings and sends infected messages to addresses found. To send infected message the worm uses a direct connection to the default SMTP server, or connects to the "smtp.163.com" server.
Following are different variations of 'supnot' message attributes:
Subject:
Text:
Attachment:

Cracks!
Check our list and mail your requests!
CrkList.exe

The patch
I think all will work fine.
Patch.exe

Last Update
This is the last cumulative update.
LUPdate.exe

Do not release
This is the pack ;)
Pack.exe

Beta
Send reply if you want to be official beta tester.
_SetupB.exe

Help
I'm going crazyall please try to find the bug!
Source.exe

Evaluation copy
Test it 30 days for free.
Setup.exe

Pr0n!
Adult content!!! Use with parental advisory.
Sex.exe

Roms
Test this ROM! IT ROCKS!.
Roms.exe

Documents
Send me your comments...
Docs.exe


The worm gets emails from Inboxes and "answers" them by using Windows MAPI functions. Replies look like:
Subject: Re: [original email subject]
Text:

[user name] wrote:
====
> [original email text]
====
[email domain name] account auto-reply:

' I'll try to reply as soon as possible.
Take a look to the attachment and send me your opinion! '

> Get your FREE [email domain name] account now! <

for example:

The attached file name is randomly selected from the following variants:
pics.exe SETUP.EXE
images.exe Card.EXE
joke.exe billgt.exe
PsPGame.exe midsong.exe
news_doc.exe s3msong.exe
hamster.exe docs.exe
tamagotxi.exe humor.exe
searchURL.exe fun.exe

Infecting Local Networks
The worm finds network resources (shared writeable disks and directories) and copies itself to them under randomly chosen names:
pics.exe SETUP.EXE
images.exe Card.EXE
joke.exe billgt.exe
PsPGame.exe midsong.exe
news_doc.exe s3msong.exe
hamster.exe docs.exe
tamagotxi.exe humor.exe
searchURL.exe fun.exe

If a network resource is password protected it also tries to request 'write' access using the following information:

Login: "guest", "Administrator"
Password: "123", "321", "123456", "654321", "administrator", "admin",
"111111", "666666", "888888", "abc", "abcdef", "abcdefg", "12345678", "abc123"

If the login is successful the worm creates a remote copy of itself named "stg.exe" and tries to launch it on the remote computer.
Backdoor

Supnot launches a "backdoor" routine that uses the IPC (Interprocess Communication) technique: it creates a pipe connected to a command processor that is launched on the victim computer - CMD.EXE in Windows NT/2000/XP or COMMAND.COM in Windows 9x/ME. This allows the worm's "owner" to control the victim computer remotely.
The backdoor is launched three different ways:
as a thread in the worm's process
as a part of the "LSASS.EXE" process (under WinNT)
as stand-alone DLL-files "ily.dll", "Task.dll", "reg.dll" that are stored in the Windows system directory.
The three methods of executing the backdoor carry the identical payload routine.
Other
While sending e-mail messages, the worm creates a temporary file called "CH0016.TMP" in the Windows temporary directory.
The worm also sends a 'notification' e-mail to its "owner" that contains the infected computer's name, IP address, and current user name.
This email contains the following "copyright" string:
My I-WORM-and-IPC-20168 running!

Check other viruses! Be aware! Use Antiviral Software

Lazy.720

Description Lazy.720

It is a dangerous memory resident virus. It copies itself to the system memory at addresses 7000:A350, hooks INT 10h, 21h, and then writes itself to the end of .COM files that are executed. The virus slows the output to the screen - it executed the dummy loop in INT 10h handler. The virus contains the text:
[ lazy ]

LazyToday.1203

Description LazyToday.1203

It is not a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. Depending on the system date it displays the message:
Forget it, I'm lazy today!

and exits to DOS instead of executing the host program.

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