Worm.Kolabc.A
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 12,830 |
| Threat Level: | 50 % (Medium) |
| Infected Computers: | 125 |
| First Seen: | May 24, 2011 |
| Last Seen: | August 7, 2026 |
| OS(es) Affected: | Windows |
Worm.Kolabc.A is a malicious worm which spreads through removable drives and other computers connected to the network. Worm.Kolabc.A opens a back door to help remote attackers get full access to the compromised machine and makes changes to the Windows Firewall and other security reports by modifying the system registry. When Worm.Kolabc.A is installed onto the targeted PC, it drops a copy of itself in the Windows fonts folder. Worm.Kolabc.A makes effort to corrupt other PCs which are connected to the infected computer via a mapped network share. Worm.Kolabc.A also attempts to use certain ports to connect to some remote servers to get further instructions from its makers. Worm.Kolabc.A creates a unique 'Desktop.ini' file which changes the icon of its executable so that it will occur as a 'recycle bin' file, which then executes from the original Worm.Kolabc.A's executable. Delete Worm.Kolabc.A before it harms your PC.
Table of Contents
Aliases
15 security vendors flagged this file as malicious.
| Antivirus Vendor | Detection |
|---|---|
| Panda | Suspicious file |
| BitDefender | Gen:Trojan.Heur.VP.fm0@am8ECzob |
| BitDefender | Gen:Trojan.Heur.VP.fm0@aaM@Nlcb |
| Kaspersky | HEUR:Trojan.Win32.Generic |
| BitDefender | Gen:Trojan.Heur.VP.fm0@amouf3eb |
| Kaspersky | Trojan.Win32.VBKrypt.darp |
| Fortinet | MSIL/Agent.SH!tr.pws |
| Antiy-AVL | Trojan/win32.agent.gen |
| Sophos | Mal/MSIL-A |
| eSafe | Win32.MSILAgent.SH.P |
| McAfee | Artemis!63CBB1DAD54E |
| AhnLab-V3 | Trojan/Win32.VBKrypt |
| BitDefender | Gen:Trojan.Heur.VP.fm0@a4pElSeb |
| Kaspersky | Trojan.Win32.VBKrypt.daqk |
| NOD32 | probably a variant of Win32/VB.PTG |
SpyHunter Detects & Remove Worm.Kolabc.A
File System Details
Worm.Kolabc.A may create the following file(s):
| # | File Name | MD5 |
Detections
Detections: The number of confirmed and suspected cases of a particular threat detected on
infected computers as reported by SpyHunter.
|
|---|---|---|---|
| 1. | Kobalc.exe | 15717cd327a723820d71900611545917 | 22 |
| 2. | 8pyt.exe | 38d42ab8f27c9a10d0a2678173a9abd2 | 14 |
| 3. | e8wb.exe | b7d92b68457272ddde8d2ce057dcf53d | 11 |
| 4. | 8l964.exe | ba78d8e48a99127b52806d424d57989b | 5 |
| 5. | urlmon32.exe | 7c11cd111476ccdf5bf395bf69756ba2 | 4 |
| 6. | snvztea.exe | 243e58918479b990209a3de43cafac9b | 1 |
| 7. | sv.exe | ||
| 8. | iexplorer.exe | ||
| 9. | umdmgr.exe | ||
| 10. | waw32.exe | ||
| 11. | avdrive32.exe | ||
| 12. | scvchost.exe | ||
| 13. | audiodh.exe | ||
| 14. | winupd01.exe | ||
| 15. | csrss.exe | ||
| 16. | jjdrive32.exe | ||
| 17. | winupd.exe | ||
| 18. | 715.exe | ||
| 19. | file.exe | ||
| 20. | 8pyt.exe | ||
| 21. | msvmcls64.exe | ||
| 22. | services.exe | ||
| 23. | lsass.exe | ||
| 24. | xfgn.exe | ||
| 25. | sysmngsr322.exe | ||
| 26. | wind7upd.exe | ||
| 27. | sysdiag64.exe | ||
| 28. | ihost.exe | ||
| 29. | wndrive32.exe | ||
| 30. | cidrive32.exe | ||
| 31. | taskmrg32.exe |
Registry Details
Worm.Kolabc.A may create the following registry entry or registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ Windows Management Service
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ file
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ Advanced DHTML Enable
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ Microsoft Update Setup
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ Microsoft Driver Setup
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ 788
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ winupdate
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ MS Virtual CLS
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ MicrosoftNAPC
HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS\CURRENTVERSION\RUN\ Windows automatic updates
Analysis Report
General information
| Family Name: | Worm.Kolabc.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
a12562f9f70b649e7ef992ff59030642
SHA1:
1500350d88130582983459bc09252725ea003433
SHA256:
03D2B5A2665AA51BAAC8C82DBEF14176094E28CBD9BDEA9FAC5515ABEDE0C26A
File Size:
990.72 KB, 990720 bytes
|
|
MD5:
1faf5315d1debc95f8c6dc0351f272d2
SHA1:
a47991464e349757da1e0f294557bc60857affb9
SHA256:
06444E2C8708E7F8110DF0D49CB99F35127445BAB956CA4BB093A39B70702C79
File Size:
788.46 KB, 788460 bytes
|
Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have security information
- File has TLS information
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
Show More
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
File Traits
- big overlay
- No Version Info
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 190 |
|---|---|
| Potentially Malicious Blocks: | 32 |
| Whitelisted Blocks: | 158 |
| Unknown Blocks: | 0 |
Visual Map
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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\marijuana.txt | Generic Write,Read Attributes |
| c:\windows\syswow64\dc++ share\configsecuritypolicy.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\configsecuritypolicy.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\dtudriver.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\dtudriver.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\dtudriver.exe | Synchronize,Write Data |
| c:\windows\syswow64\dc++ share\expediteupdater.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\expediteupdater.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\ielowutil.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\ielowutil.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
Show More
| c:\windows\syswow64\dc++ share\iexplore.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\iexplore.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\mpcmdrun.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\mpcmdrun.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\msmpeng.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\msmpeng.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\msmpeng.exe | Synchronize,Write Data |
| c:\windows\syswow64\dc++ share\mssense.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\mssense.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\mssense.exe | Synchronize,Write Data |
| c:\windows\syswow64\dc++ share\nissrv.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\nissrv.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\nissrv.exe | Synchronize,Write Data |
| c:\windows\syswow64\dc++ share\offlinescannershell.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\offlinescannershell.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\plugscheduler.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\plugscheduler.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\rcx836e.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\rcx838e.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\rcx83fd.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\rcx872a.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\rcx91e9.tmp | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\ruximics.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\ruximics.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\ruximics.exe | Synchronize,Write Data |
| c:\windows\syswow64\dc++ share\ruximih.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\ruximih.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\sensece.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\sensece.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\dc++ share\uhssvc.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\dc++ share\uhssvc.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\sirc4.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\culauncher.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\extexport.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\iediagcmd.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\xdccprograms\iediagcmd.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\ieinstal.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\xdccprograms\ieinstal.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\inputpersonalization.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\xdccprograms\inputpersonalization.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\mip.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\xdccprograms\mip.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\msinfo32.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\shapecollector.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\xdccprograms\shapecollector.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
| c:\windows\syswow64\xdccprograms\tabtip.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\windows\syswow64\xdccprograms\tabtip.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data,Delete,LEFT 262144 |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKLM\software\wow6432node\microsoft\windows nt\currentversion\winlogon::shell | Explorer.exe sIRC4.exe | RegNtPreCreateKey |
