GRK-SOFT LLC - 16% Detection Rate *
Did you just find a download or a file on your computer that has been digitally signed by GRK-SOFT LLC? Some of the security products refers to the detected files as not-a-virus:NetTool.Win64.NetFilter.mr and Trojan.Triosir.262. The detection rate for the GRK-SOFT LLC files collected here is 16%. Please read on for more details.
You will typically notice GRK-SOFT LLC when double-clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view additional details from the GRK-SOFT LLC certificate with the following steps:
- Open Windows Explorer and locate the GRK-SOFT LLC file
- Right-click on the file and select Properties
- Click on the Digital Signatures tab
- Click on the View Certificate button
Here is a screencap of a file signed by GRK-SOFT LLC:
As you can see in the screenshot above, Windows states that "This digital signature is OK". This implies that the file has been published by GRK-SOFT LLC and that the file has not been tampered with.
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 see the address for GRK-SOFT LLC, such as the street name, city and country.
COMODO Code Signing CA 2 has issued the GRK-SOFT LLC certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
GRK-SOFT LLC Files
These are the GRK-SOFT LLC files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 3/56 | iscreeny.sys |
| 16/61 | iscreeny.sys |
Scanner and Detection Names
Here is the detection names for the GRK-SOFT LLC files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| AVware | Trojan.Win32.Generic!BT |
| Antiy-AVL | GrayWare[AdWare]/Win32.NetFilter.a |
| Baidu-International | Hacktool.Win32.NetFilter.A |
| DrWeb | Trojan.Triosir.262 |
| ESET-NOD32 | a variant of Win32/NetFilter.A potentially unsafe, a variant of Win64/NetFilter.A potentially unsafe |
| Endgame | malicious (high confidence) |
| Invincea | generic.a |
| Kaspersky | not-a-virus:NetTool.Win64.NetFilter.mr |
| McAfee | Artemis!6D422D14BB2C |
| McAfee-GW-Edition | Artemis!PUP |
| SUPERAntiSpyware | PUP.NetFilter/Variant |
| SentinelOne | static engine - malicious |
| Symantec | Trojan.Gen.2 |
| VIPRE | Trojan.Win32.Generic!BT |
| ViRobot | Adware.Netfilter.50840[h] |
| Yandex | Riskware.Agent! |
| ZoneAlarm | not-a-virus:NetTool.Win64.NetFilter.mr |
* How the Detection Percentage is Calculated
The detection percentage is based on that I've gathered 117 scan reports for the GRK-SOFT LLC files. 19 of these scan reports came up with some sort of detection. You can view the full details of the scan results by examining the files listed above.
Analysis Details
The analysis has been done on certificates with the following serial numbers:
- 0085845c25891b6dfdaeb36eee4ed7d532