Did you just find a file that is digitally signed by Duplex Secure Ltd? If that's the case, please read on.
You will typically see Duplex Secure Ltd when double-clicking to run the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view the additional details from the Duplex Secure Ltd digital signature with the following procedure:
Here's a screenshot of a file signed by Duplex Secure Ltd:
As you can see in the screengrab above, Windows reports that "This digital signature is OK". This implies that the file has been published by Duplex Secure Ltd and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot above, you can see 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 Duplex Secure Ltd, such as the street name, city and country.
VeriSign Class 3 Code Signing 2004 CA and VeriSign Class 3 Code Signing 2009-2 CA has issued the Duplex Secure Ltd certificates. You can also examine the details of the issuer by clicking the View Certificate button shown in the screenshot above.
The following are the Duplex Secure Ltd files I've gathered, thanks to the FreeFixer users.
Detection Ratio | File Name |
---|---|
1/51 | sptd.sys |
1/50 | sptd.sys |
1/50 | sptd.sys |
1/51 | sptd.sys |
1/51 | sptd.sys |
1/50 | sptd.sys |
1/50 | sptd.sys |
1/48 | sptd.sys |
2/49 | sptd.sys |
1/47 | sptd.sys |
2/50 | sptd.sys |
2/47 | sptd.sys |
0/52 | sptd.sys |
0/51 | avz00020.dta |
0/52 | sptd.sys |
0/51 | sptd.sys |
0/51 | sptd.sys |
0/46 | sptd.sys |
Here's the detection names for the Duplex Secure Ltd files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
Scanner | Detection Names |
---|---|
K7GW | Riskware ( 0015e4f21 ) |
McAfee-GW-Edition | Heuristic.BehavesLike.Win32.Suspicious-BAY.G |
TrendMicro | PAK_Generic.009 |
TrendMicro-HouseCall | PAK_Generic.009 |
The detection percentage is based on that I have gathered 1426 scan reports for the Duplex Secure Ltd files. 15 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 has been done on certificates with the following serial numbers: