PCK.MEW
Cuadro de Mando de Amenazas
Cuadro de mando de amenazas EnigmaSoft
EnigmaSoft Threat Scorecards son informes de evaluación de diferentes amenazas de malware que nuestro equipo de investigación ha recopilado y analizado. Los cuadros de mando de amenazas de EnigmaSoft evalúan y clasifican las amenazas utilizando varias métricas que incluyen factores de riesgo reales y potenciales, tendencias, frecuencia, prevalencia y persistencia. Los cuadros de mando de amenazas de EnigmaSoft se actualizan regularmente en función de nuestros datos y métricas de investigación y son útiles para una amplia gama de usuarios de computadoras, desde usuarios finales que buscan soluciones para eliminar malware de sus sistemas hasta expertos en seguridad que analizan amenazas.
EnigmaSoft Threat Scorecards muestra una variedad de información útil, que incluye:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Nivel de severidad: El nivel de severidad determinado de un objeto, representado numéricamente, basado en nuestro proceso de modelado de riesgo e investigación, como se explica en nuestros Criterios de evaluación de amenazas .
Computadoras infectadas: la cantidad de casos confirmados y sospechosos de una amenaza particular detectada en computadoras infectadas según lo informado por SpyHunter.
Consulte también Criterios de evaluación de amenazas .
| Popularity Rank: | 15,053 |
| Nivel de amenaza: | 100 % (Elevado) |
| Computadoras infectadas: | 789 |
| Visto por primera vez: | July 24, 2009 |
| Ultima vez visto: | March 14, 2026 |
| SO(s) afectados: | Windows |
El PCK.MEW es un software maligno que puede descargar software nocivo adicional en el ordenador infectado sin notificar al usuario. Una vez que esto sucede, archivos nocivos se cargan en la memoria al arrancar Windows, haciéndolo difícil de detectar y de eliminar manualmente ....
Tabla de contenido
Alias
11 proveedores de seguridad marcaron este archivo como malicioso.
| Antivirus Vendor | Detección |
|---|---|
| Prevx1 | Heuristic: Suspicious File With Code Injection Tec |
| Ikarus | Backdoor.Win32.G_Door.22 |
| Sunbelt | VIPRE.Suspicious |
| Sophos | Mal/EncPk-BA |
| Prevx1 | SystemPoser:Trojan-All Variants |
| Panda | Suspicious file |
| Ikarus | IM-Worm.Win32.Sumom.C |
| F-Secure | Suspicious:W32/Malware!Gemini |
| eSafe | suspicious Trojan/Worm |
| ClamAV | PUA.Packed.MEW-1 |
| CAT-QuickHeal | W32.Brontok.Q |
Reporte de análisis
Información general
| Family Name: | Malware.MEW.Gen |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
7fcb04ee4ebc147dbccc900edbe6ffc8
SHA1:
53c0c8c74f3e01e93d6d545ab81fe405473440ea
SHA256:
C4FCD493DD2EC807DA296CFECFA0C4AED9D62266841D030671E13407E1B30FF3
Tamaño del archivo:
1.61 MB, 1610779 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 relocations information
- File doesn't have security 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
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- 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.
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Nombre | Valor |
|---|---|
| Company Name | Symantec Corporation |
| File Description | Self-Extracting Custom Command Launcher |
| File Version | 1.2.3.924 RELEASE |
| Internal Name | W32SFX |
| Legal Copyright | Copyright 2002-2003 by Symantec Corporation |
| Original Filename | W32SFX.exe |
| Product Name | Symantec Shared Library |
| Product Version | 1.2.3 |
File Traits
- HighEntropy
- No Version Info
- x86
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:\symnonav\blankmsicleanup.bat | Synchronize,Write Data |
| c:\symnonav\cleaninstfolder.bat | Synchronize,Write Data |
| c:\symnonav\currdir.txt | Generic Write,Read Attributes |
| c:\symnonav\currsettings.txt | Synchronize,Write Data |
| c:\symnonav\enummsi.bat | Synchronize,Write Data |
| c:\symnonav\esugdir.exe | Synchronize,Write Data |
| c:\symnonav\esugdlgcontrol.exe | Synchronize,Write Data |
| c:\symnonav\esugenum.exe | Synchronize,Write Data |
| c:\symnonav\esugmsi.exe | Synchronize,Write Data |
| c:\symnonav\esugmsiconvert.exe | Synchronize,Write Data |
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| c:\symnonav\esugpm.exe | Synchronize,Write Data |
| c:\symnonav\esugreg.exe | Synchronize,Write Data |
| c:\symnonav\esugsleep.exe | Synchronize,Write Data |
| c:\symnonav\esugunen.exe | Synchronize,Write Data |
| c:\symnonav\esuguneng.exe | Synchronize,Write Data |
| c:\symnonav\logs\date_tue_03_10_2026-time_1_59_34_66_nonav.log | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\symnonav\logs\date_tue_03_10_2026-time_1_59_34_66_nonav.log | Generic Write,Read Attributes |
| c:\symnonav\logs\tmp.log | Generic Read,Write Data,Write Attributes,Write extended,Append data |
| c:\symnonav\logs\tmp.log | Generic Write,Read Attributes |
| c:\symnonav\msiunst.bat | Synchronize,Write Data |
| c:\symnonav\nolu.inf | Synchronize,Write Data |
| c:\symnonav\nolu.reg | Synchronize,Write Data |
| c:\symnonav\nonav.bat | Synchronize,Write Data |
| c:\symnonav\nonav.inf | Synchronize,Write Data |
| c:\symnonav\nonav.reg | Synchronize,Write Data |
| c:\symnonav\nonav.txt | Synchronize,Write Data |
| c:\symnonav\noquar.inf | Synchronize,Write Data |
| c:\symnonav\noquar.reg | Synchronize,Write Data |
| c:\symnonav\productcodes.txt | Synchronize,Write Data |
| c:\symnonav\rtvstop.exe | Synchronize,Write Data |
| c:\symnonav\scfuninst.bat | Synchronize,Write Data |
| c:\symnonav\scskeys.reg | Synchronize,Write Data |
| c:\symnonav\serviceshutdown.exe | Synchronize,Write Data |
| c:\symnonav\serviceshutdown_in.txt | Synchronize,Write Data |
| c:\symnonav\sevinst.exe | Synchronize,Write Data |
| c:\symnonav\silentnonav.bat | Synchronize,Write Data |
| c:\symnonav\sqlunst.bat | Synchronize,Write Data |
| c:\symnonav\unengvar.bat | Synchronize,Write Data |
| c:\symnonav\unengvar.txt | Synchronize,Write Data |
| c:\symnonav\unregisterdlls.bat | Synchronize,Write Data |
| c:\users\user\appdata\local\temp\~sfx69afdd75\autorun.iff | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\blankmsicleanup.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\cleaninstfolder.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\currsettings.txt | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\enummsi.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugdir.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugdlgcontrol.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugenum.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugmsi.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugmsiconvert.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugpm.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugreg.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugsleep.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esugunen.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\esuguneng.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\msiunst.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\nolu.inf | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\nolu.reg | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\nonav.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\nonav.inf | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\nonav.reg | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\nonav.txt | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\noquar.inf | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\noquar.reg | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\productcodes.txt | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\rtvstop.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\scfuninst.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\scskeys.reg | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\serviceshutdown.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\serviceshutdown_in.txt | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\sevinst.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\silentnonav.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\sqlunst.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\unengvar.bat | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\unengvar.txt | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\~sfx69afdd75\unregisterdlls.bat | Generic Write,Read Attributes |
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 | Datos | API Name |
|---|---|---|
| HKLM\system\controlset001\services\bam\state\usersettings\s-1-5-21-3119368278-1123331430-659265220-1001::\device\harddiskvolume2\windows\system32\conhost.exe | 㜆끬ǜ | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Process Manipulation Evasion |
|
| Process Shell Execute |
|
| Syscall Use |
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|
| Anti Debug |
|
| User Data Access |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
NoNav.bat
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C:\SymNoNav\esugunen.exe ESUGUnEn /LF".\logs\tmp.log" /DELVAL"HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Runonce" "ESUGUnEng1"
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C:\SymNoNav\esugunen.exe ESUGUnEn /LF".\logs\tmp.log" /DELVAL"HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Runonce" "ESUGUnEng2"
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C:\SymNoNav\esugunen.exe ESUGUnEn /LF".\logs\tmp.log" /DELVAL"HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Runonce" "ESUGUnEng3"
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C:\SymNoNav\esugunen.exe ESUGUnEn /LF".\logs\tmp.log" /DELVAL"HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Runonce" "ESUGUnEng4"
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C:\SymNoNav\esugunen.exe ESUGUnEn /LF".\logs\tmp.log" /DELVAL"HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Runonce" "ESUGUnEng5"
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C:\SymNoNav\esugdlgcontrol.exe ESUGdlgcontrol -title "NoNav" -msg "NoNav will remove NAVCE and Symantec AV version 4
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