CJSC Returnil Software - 0.239% Detection Rate *

Did you just download a file that has a digital signature from CJSC Returnil Software and wonder if the file is safe? If so, please read on.

You will typically notice CJSC Returnil Software when clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:

Screenshot where CJSC Returnil Software appears as the verified publisher in the UAC dialog

You can view the additional details from the CJSC Returnil Software digital signature with the following steps:

  1. Open Windows Explorer and locate the CJSC Returnil Software file
  2. Right-click the file and select Properties
  3. Click on the Digital Signatures tab
  4. Click on the View Certificate button

Here is a screenshot of a file that has been digitally signed by CJSC Returnil Software:

Screenshot of the CJSC Returnil Software certificate

As you can see in the screengrab above, Windows states that "This digital signature is OK". This implies that the file has been published by CJSC Returnil Software and that the file has not been tampered with.

If you click the View Certificate button shown in the screencap above, you can examine all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also view the address for CJSC Returnil Software, such as the street name, city and country.

VeriSign Class 3 Code Signing 2004 CA and VeriSign Class 3 Code Signing 2010 CA has issued the CJSC Returnil Software certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.

CJSC Returnil Software Files

These are the CJSC Returnil Software files I have collected, thanks to the FreeFixer users.

Detection RatioFile Name
1/43rvsmonf.sys
1/43rvsmon.exe
0/46rvsmon.sys
0/43rvsmon.exe
0/43rvsmon.sys
0/41rvsmonn2.sys
0/42rvsystem.sys
0/41rvsmonn1.sys
0/52rvsupd.exe
0/51rccsvc.exe
0/50rsssvc.exe

Scanner and Detection Names

Here is the detection names for the CJSC Returnil Software files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.

ScannerDetection Names
ByteHeroTrojan.Win32.Heur.098
eSafeVirus in password protected archive

* How the Detection Percentage is Calculated

The detection percentage is based on that I have collected 836 scan results for the CJSC Returnil Software files. 2 of these scan results came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.

Analysis Details

The analysis is done on certificates with the following serial numbers:

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