Did you just run into a download or a file on your computer that has been digitally signed by Sophos Limited? If that's the case, please read on.
You will probably notice Sophos Limited when running the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screencap shows:
You can view the additional details from the Sophos Limited digital signature with the following procedure:
Here is a screenshot of a file that has been signed by Sophos Limited:
As you can see in the screenshot above, the Windows OS states that "This digital signature is OK". This means that the file has been published by Sophos Limited and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can view all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, etc. You can also examine the address for Sophos Limited, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Sophos Limited certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Sophos Limited files I have collected, thanks to the FreeFixer users.
The FreeFixer tool treats files from Sophos Limited as trusted, which means that the Sophos Limited files will appear with a green background and that there's no removal checkbox for the file. However, as you can see in the scan results below, a few of the anti-virus scanners detects the Sophos Limited file(s). I'm pretty sure those detections are incorrect and that the files are safe. It's unlikely that Sophos Limited would ship a malware file.
Detection Ratio | File Name |
---|---|
1/56 | swi_ifslsp_64.dll |
1/51 | sar_15_sfx.exe |
1/53 | swi_ifslsp_64.dll |
1/50 | swi_ifslsp_64.dll |
1/49 | swi_ifslsp_64.dll |
1/49 | swi_ifslsp_64.dll |
1/57 | sducli.exe |
0/46 | swi_ifslsp.dll |
0/47 | savonaccess.sys |
0/56 | savonaccess.sys |
0/55 | swi_callout.sys |
0/57 | swi_ifslsp_64.dll |
0/56 | swi_callout.sys |
0/56 | savonaccess.sys |
0/57 | sophos_detoured.dll |
0/46 | A0046124.sys |
0/57 | sntp.sys |
Here's the detection names for the Sophos Limited files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
As mentioned above, I think these detections are incorrect since it is very unlikely that Sophos Limited would ship a malware file.
Scanner | Detection Names |
---|---|
AegisLab | W32.Parite, AdWare.W32.Lollipop.lXuA |
CMC | Backdoor.Win32.Shiz.2!O |
The detection percentage is based on the fact that I have gathered 8481 scan results for the Sophos Limited files. 7 of these scan reports came up with some sort of detection. You can view the full details of the scan reports by examining the files listed above.
The analysis is done on certificates with the following serial numbers: