Virus Database

NextGen.2304

Description NextGen.2304

It is a harmless memory resident parasitic stealth virus. It hooks INT 21h, 2Fh and writes itself to the end of EXE files that are accessed. It contains the text strings:
The NextGen Stealth Virus
IL USA, 6-93all(Revision)

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I-Worm.Jer

Description I-Worm.Jer

This is an Internet worm that spreads through IRC channels and also intends to spread via e-mail, but fails because of bugs in its code.
Installation
The worm has been placed by its author on a page on the www.geocities.com. The page has the title:
"<< THE 40 WAYS WOMEN FAIL IN BED".
On 2 July 2000, the info about this page was announced to IRC channels and there were more than 1000 hits on that page for the first day. Fortunately, the worm had a bug in its e-mail infection routine, and it didn't spread too far.
The "Jer" worm uses a primitive, but very effective way of penetrating computers. A Web site contains a script-program (the worm itself), which is automatically executed after a user opens an infected HTML page. Then a user receives a warning from the system whether to accept this unknown script or not. This method exploits so-called "mind breaches": to avoid this annoying message, a user will answer "yes". Right after this moment, the worm will be passed on to the computer.

The infected HTML page contains the VBS script in its body. Upon opening that page, the script automatically is executed and the worm gains control. It creates a copy of the infected HTML page in the Windows system directory with the JER.HTM name and registers it in the system registry in the autostart section:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunGinSenG = "JER.HTM"
As a result, the worm will be automatically executed on each Windows startup.
Spreading
The worm then goes to the C:MIRC directory and (if such a directory exists) creates a "SCRIPT.INI" file that contains the commands for the mIRC client. The worm writes to this file a set of commands to send an infected JER.HTM file to every computer that connects to the same channel as the infected computer. Additionally, this script provides access to the local disk of the infected computer to the IRC user who has typed a specified script keyword.
Payload
The worm makes some more changes in the system registry:
Disables desktop
Disables "Find" dialog box
Disables network properties dialog box
Removes "Shut Down" from "Start" menu
The worm also changes the Windows registration information:
Owner: I Love You, Min
Organization: GinsengBoy- 2000
Removal
To restore system settings, the original registry values have to be restored.
NOTE: It is recommended that only experienced users fix the Registry keys by using the Registry Editor. Incorrect access can cause serious problems that may require you to reinstall Windows. For information about how to edit the registry, view the Changing Keys And Values online Help topic in the Registry Editor (REGEDIT.EXE).
The following keys have to be removed from the registry:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRunGinSenG
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionPoliciesExplorerNoDesktop
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionPoliciesExplorerNoFind
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionPoliciesNetworkNoNetSetup
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionPoliciesExplorerNoClose
The following keys have to be changed to proper values:
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionVersion - Windows version (for example "Windows 98").
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRegisteredOwner - User name (Windows registered to)
HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRegisteredOrganization - Organization name (Windows registered to)

I-Worm.Kadra

Description I-Worm.Kadra

This is a Win32 PE EXE worm that spreads in e-mail messages using a system's default MAPI client. When started, it copies itself to %WINDOWS%Win32Dlw.EXE and %SYSTEM%Win32Exp.EXE, then writes the following key to the registry to start automaically with Windows: HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrent VersionRun RunExplorer=%SYSTEM%Win32Exp.EXE
If the current month is Semptember, the worm draws the following message on the screen:
Kad sve izgleda da umire,allono se ustvari radja!
Then, the worm shows a message box with a '...' title and the following text:
Moja jutra su sve jasnija,
Moja snaga je prodornija,
Moje rijeci silno odjekuj
Moj mac je ostriji,
Moje noci su sve hladnije.
...ali dan je blizi kad ce
ljudi shvatiti da su samo,
i nista drugo nego ono sto
sam i JA!

After displaying a message, the worm does nothing for 2 minutes, and then sends itself to all senders of e-mail messages stored in the default MAPI client inbox.
All messages sent by the worm have the following properties:

Message subject is: Bin Ladenov zivot.
File attached: Bin Ladenov Zivot.exe
Message body: Ako jos do sada niste znali ko je Bin Laden onda vjerovatno cete naci ovaj dokument interesantnim u kojem je prikazano nekoliko vaznih momenata u, u njegovom zivotu, cak dok je jos radio pri CIA!

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