Trojan SEFNIT
Posted: November 22, 2011
Threat Metric
The following fields listed on the Threat Meter containing a specific value, are explained in detail below:
Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.
Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.
Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.
Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.
% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.
| Threat Level: | 8/10 |
|---|---|
| Infected PCs: | 58,353 |
| First Seen: | November 22, 2011 |
|---|---|
| Last Seen: | November 10, 2023 |
| OS(es) Affected: | Windows |
Trojan SEFNIT is a dangerous Trojan that targets popular web browsers like Mozilla and Internet Explorer. Trojan SEFNIT blocks your activity to search engines and redirects search URL links. Trojan SEFNIT tries to exploit flaws in the affected web browser to obtain access to the infected computer. Trojan SEFNIT creates a .dll file and embeds it into processes of Mozilla and Internet Explorer, and generates mutex and startup registry entries.
Technical Details
File System Modifications
Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.
The following files were created in the system:C:\Windows\Temp\81D0.tmp
File name: 81D0.tmpSize: 335.87 KB (335872 bytes)
MD5: bf6054d16bbce96159f8cbbde8ea80b3
Detection count: 5,120
File type: Temporary File
Mime Type: unknown/tmp
Path: C:\Windows\Temp\81D0.tmp
Group: Malware file
Last Updated: May 13, 2023
%WINDIR%\SysWOW64\TrustedInstaller.exe
File name: TrustedInstaller.exeSize: 402.94 KB (402944 bytes)
MD5: a472021e21a13dc3081f99f53a5461a6
Detection count: 183
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\SysWOW64
Group: Malware file
Last Updated: July 28, 2016
%APPDATA%\Updater\updater.dll
File name: updater.dllSize: 1.56 MB (1564672 bytes)
MD5: b99fe4761f454b4e25e86152b4b51784
Detection count: 96
File type: Dynamic link library
Mime Type: unknown/dll
Path: %APPDATA%\Updater
Group: Malware file
Last Updated: March 23, 2016
%WINDIR%\system32\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\wins.exe
File name: wins.exeSize: 2.78 MB (2785792 bytes)
MD5: 7d60bc72c525b377068706c235f9cdc5
Detection count: 82
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\system32\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service
Group: Malware file
Last Updated: August 20, 2016
%APPDATA%\Microsoft\ApplicationManager\stub.exe
File name: stub.exeSize: 214.52 KB (214528 bytes)
MD5: 24c2573af8b38dc88fb933ae12c9e40b
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %APPDATA%\Microsoft\ApplicationManager
Group: Malware file
Last Updated: March 25, 2016
More files
Registry Modifications
Regexp file mask%APPDATA%\Microsoft\ApplicationManager\stub.exe%APPDATA%\Updater\updater.dll%WINDIR%\system32\config\systemprofile\AppData\Local\Windows Internet Name Service\wins.exe%WINDIR%\SysWOW64\config\systemprofile\AppData\Local\Windows Internet Name Service\wins.exe
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