W32.Ramnit

Posted: August 4, 2010

Threat Metric

The Threat Meter is a malware assessment that SpywareRemove.com's research team is able to give every identifiable malware threat. Our Threat Meter includes several criteria based off of specific malware threats to value their severity, reach and volume. The Threat Meter is able to give you a numerical breakdown of each threat's initial Threat Level, Detection Count, Volume Count, Trend Path and Percentage Impact. The overall ranking of each threat in the Threat Meter is a basic breakdown of how all threats are ranked within our own extensive malware database. The scoring for each specific malware threat can be easily compared to other emerging threats to draw a contrast in its particular severity. The Threat Meter is a useful tool in the endeavor of seeking a solution to remove a threat or pursue additional analytical research for all types of computer users.

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:	5/10
Infected PCs:	152

First Seen:	November 12, 2010
Last Seen:	April 28, 2022
OS(es) Affected:	Windows

W32.Ramnit is a worm that infects .exe, .dll and .html files to reproduce and infect other systems. After infection, W32.Ramnit will hijack your browser to redirect you to a malicious domain. W32.Ramnit may also make contact with an anonymous third party through Internet Explorer exploits, allowing the remote attacker to violate your privacy and exert control over your computer. Many anti-malware programs have been unable to detect W32.Ramnit in some instances; severe infections can necessitate a complete system wipe to remedy the situation. Be cautious about worms like W32.Ramnit when on large networks or using removable media, and strive to delete W32.Ramnit quickly before it becomes too difficult to remove.

How W32.Ramnit Crawls to Your Machine

One of the first things W32.Ramnit does is infect any .exe, .dll, or .html files W32.Ramnit can find. If you open these infected files, congratulations - now you've got W32.Ramnit, too! W32.Ramnit may also create concealed Autorun.inf files that are placed on various drives, including removable ones. Any computer that then accesses these drives will also get the W32.Ramnit worm.

Different versions of W32.Ramnit have been identified as a threat since January of 2010, and the worm is far from exterminated yet. Fortunately, indicators of W32.Ramnit's presence are sufficiently plain that you ought to see W32.Ramnit before it's been on your system too long. Deleting W32.Ramnit with sufficient quickness can mean the difference between your computer surviving without damage and your computer needing a complete hard drive wipe.

W32.Ramnit may also be detected under the slight variant names of W32.Ramnit.A and W32.Ramnit.B.

Does W32.Ramnit Have Your System in Its Clutches?

If you're running Windows 95 up to Windows Vista, you're in danger of being infected by W32.Ramnit. Prominent symptoms of this infection are reported as the following:

Alteration of sizes or date modified statistics in your .exe, .dll, or .html files.
The appearance of Autorun.inf files in your removable or non-removable hard drives.
Browser hijackings which redirect you towards www.rmnzerobased.com. This is a malicious website that should be avoided, since it may attempt to drop additional malware on your system. W32.Ramnit has also been associated with zahlung.name, glavdmn.com and fget-career.com.

Due to the harm this worm can cause and its rapidity of propagation, W32.Ramnit is a fairly serious threat. Prolonged delay of cleaning the infection can result in even Safe Mode-based scans being inadequate to delete W32.Ramnit, so don't hesitate to act.

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:

%PROGRAMFILES%\microsoft\desktoplayer.exe

File name: desktoplayer.exe
Size: 41.98 KB (41984 bytes)
MD5: fbf3d2e793ee27f19e15b791ee867c62
Detection count: 80
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\microsoft
Group: Malware file
Last Updated: November 12, 2010

J:\$Recycle.Bin\S-1-5-21-4280012986-1309315051-253067505-1000\$R1PTAK7.exe

File name: $R1PTAK7.exe
Size: 53.76 KB (53760 bytes)
MD5: ce99b549382dbfc4f41efe99b5dbcd54
Detection count: 68
File type: Executable File
Mime Type: unknown/exe
Path: J:\$Recycle.Bin\S-1-5-21-4280012986-1309315051-253067505-1000\$R1PTAK7.exe
Group: Malware file
Last Updated: February 23, 2023

%PROGRAMFILES%\microsoft\desktoplayer.exe

File name: desktoplayer.exe
Size: 47.1 KB (47104 bytes)
MD5: 109cfc09fd1bf2dd9c1e05c681e5a7f7
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %PROGRAMFILES%\microsoft
Group: Malware file
Last Updated: November 12, 2010

%WINDIR%\system32\rundll32srv.exe

File name: rundll32srv.exe
Size: 69.63 KB (69632 bytes)
MD5: e79f2388f25b81d3544c861fb99acd23
Detection count: 5
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\system32
Group: Malware file
Last Updated: November 12, 2010

C:\Windows\System32\rundll32Srv.exe

File name: C:\Windows\System32\rundll32Srv.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

C:\Windows\System32\dmlconf.dat

File name: C:\Windows\System32\dmlconf.dat
File type: Data file
Mime Type: unknown/dat
Group: Malware file

C:\ProgramFiles\Microsoft\DesktopLayer.exe

File name: C:\ProgramFiles\Microsoft\DesktopLayer.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

C:\UserProfile\Local-Settings\Application Data\\.exe

File name: C:\UserProfile\Local-Settings\Application Data\\.exe
File type: Executable File
Mime Type: unknown/exe
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\..\..{Subkeys}HKEY_CURRENT_USER\Software\Microsoft \Windows\CurrentVersion\Internet Settings "Proxy Override" = ""HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run ""HKEY_CURRENT_USER\Software\AVSolution