Summary
Worm:W32/Todon.I is a worm that spreads to new victim machines via infected removable and network drives. The worm also has trojan-downloader capabilities, as it attempts to download additional files from remote servers.
Removal
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First, check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Technical Details
Worm:W32/Todon.I distributes itself by dropping a copy of its own malicious file (using the filename vgjeuyj.exe)onto specified drives and creates an autorun.inf file that points to it. These drives (D to Z) may include both removable drives and network drives.
While active on the computer, the worm terminates a number of processes and also attempts to download additional files from remote sites.
Installation
The malware creates the following copies of itself:
- %Program Files%\meex.exe
- %Program Files%\Common Files\Microsoft Shared\juyplqk.exe
- %Program Files%\Common Files\System\civoabs.exe
The malware creates the following autorun.inf files:
- %Program Files%\Common Files\Microsoft Shared\brgknyg.inf
- %Program Files%\Common Files\System\brgknyg.inf
Activity
The malware terminates a large number of processes if they have windows that contain the following text strings:
- ??
- ??
- ??
- ??
- ??
- ??
- ??
- ??
- ??
- ??
- ??
- ??
- ??
- ????
- ????
- ??
- QQ??
- ??
- ??
- ??
- ??
- ??
- ??
- ? ?
- 360??
- :\ - WinRAR
- QQ??
- ??
- System
- Microsoft Shared
- ??
- ??
- ??
- ????
- [26 spaces]2007
- ??
- Process
- Virus
- Trojan
- Sysinternals
Registry Changes
The malware creates the following registry entries:
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Runvgjeuyj = %Program Files%\Common Files\Microsoft Shared\juyplqk.exe"brgknyg = %Program Files%\Common Files\System\civoabs.exe
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\%executable%Debugger = %Program Files%\Common Files\Microsoft Shared\juyplqk.exe
Where %executable% is any of the following:
- Ras.exe
- avp.com
- avp.exe
- runiep.exe
- PFW.exe
- FYFireWall.exe
- rfwmain.exe
- rfwsrv.exe
- KAVPF.exe
- KPFW32.exe
- nod32kui.exe
- nod32.exe
- Navapsvc.exe
- Navapw32.exe
- avconsol.exe
- webscanx.exe
- NPFMntor.exe
- vsstat.exe
- KPfwSvc.exe
- RavTask.exe
- Rav.exe
- RavMon.exe
- mmsk.exe
- WoptiClean.exe
- QQKav.exe
- QQDoctor.exe
- EGHOST.exe
- 360Safe.exe
- iparmo.exe
- adam.exe
- IceSword.exe
- 360rpt.exe
- 360tray.exe
- AgentSvr.exe
- AppSvc32.exe
- autoruns.exe
- avgrssvc.exe
- AvMonitor.exe
- CCenter.exe
- ccSvcHst.exe
- FileDsty.exe
- FTCleanerShell.exe
- HijackThis.exe
- Iparmor.exe
- isPwdSvc.exe
- kabaload.exe
- KaScrScn.SCR
- KASMain.exe
- KASTask.exe
- KAV32.exe
- KAVDX.exe
- KAVPFW.exe
- KAVSetup.exe
- KAVStart.exe
- KISLnchr.exe
- KMailMon.exe
- KMFilter.exe
- KPFW32X.exe
- KPFWSvc.exe
- KRegEx.exe
- KRepair.com
- KsLoader.exe
- KVCenter.kxp
- KvDetect.exe
- KvfwMcl.exe
- KVMonXP.kxp
- KVMonXP_1.kxp
- kvol.exe
- kvolself.exe
- KvReport.kxp
- KVScan.kxp
- KVSrvXP.exe
- KVStub.kxp
- kvupload.exe
- kvwsc.exe
- KvXP.kxp
- KvXP_1.kxp
- KWatch.exe
- KWatch9x.exe
- KWatchX.exe
- loaddll.exe
- MagicSet.exe
- mcconsol.exe
- mmqczj.exe
- nod32krn.exe
- PFWLiveUpdate.exe
- QHSET.exe
- RavMonD.exe
- RavStub.exe
- RegClean.exe
- rfwcfg.exe
- RfwMain.exe
- RsAgent.exe
- Rsaupd.exe
- safelive.exe
- scan32.exe
- shcfg32.exe
- SmartUp.exe
- SREng.EXE
- symlcsvc.exe
- SysSafe.exe
- TrojanDetector.exe
- Trojanwall.exe
- TrojDie.kxp
- UIHost.exe
- UmxAgent.exe
- UmxAttachment.exe
- UmxCfg.exe
- UmxFwHlp.exe
- UmxPol.exe
- UpLive.exe
- upiea.exe
- AST.exe
- ArSwp.exe
- USBCleaner.exe
- rstrui.exe
- QQLiveUpdate.exe
- QQUpdateCenter.exe
- Timwp.exe
Downloads
The malware attempts to download files from the following locations:
- https://www.[removed]/TDown1.exe
- https://www.[removed]/ReadDown.txt
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