GrabRez - 18% Detection Rate *
Did you just find a download or a file on your computer that has a digital signature from GrabRez? Some of the security products refers to the detected files as Adware.Agent.NYV and PUP.Optional.GrabRez.A. The detection rate for the GrabRez files collected here is 18%. Please read on for more details.
You'll probably see GrabRez when 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 digital signature details for GrabRez with the following steps:
- Open up Windows Explorer and locate the GrabRez file
- Right-click on the file and select Properties
- Click the Digital Signatures tab
- Click the View Certificate button
Here's a screenshot of a file signed by GrabRez:
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 GrabRez and that no one has tampered with the file.
If you click the View Certificate button shown in the screenshot 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 examine the address for GrabRez, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the GrabRez certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screencap above.
GrabRez Files
These are the GrabRez files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 13/50 | GrabRezbho.dll |
| 14/50 | GrabRezbho.dll |
| 7/50 | updateGrabRez.exe |
| 10/49 | GrabRezbho.dll |
| 1/48 | GrabRez.FirstRun.exe |
| 2/47 | SSCSetup.exe |
| 10/51 | utilGrabRez.exe |
| 14/50 | Setup[1].exe |
| 14/51 | XTLSApp.exe |
| 15/51 | utilgrabrez.exe |
| 8/51 | updateGrabRez.exe |
| 29/56 | updateGrabRez.exe |
| 0/50 | wstlibg64.sys |
| 0/49 | wstlibg.sys |
Scanner and Detection Names
Here's the detection names for the GrabRez files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.Agent.NYV |
| AVG | MalSign.Generic.D20, Generic.D20 |
| AVware | Yontoo (fs) |
| Ad-Aware | Adware.Agent.NYV |
| Agnitum | Riskware.Agent! |
| Antiy-AVL | AdWare/Win32.Agent, Trojan/Win32.SGeneric, GrayWare[AdWare:not-a-virus]/Win32.LinkSwift |
| Arcabit | Adware.Agent.NYV |
| Avast | Win32:PUP-gen [PUP] |
| Avira | ADWARE/BrowseFox.Gen7 |
| Baidu-International | Adware.Win32.BrowseFox.H, Adware.Win32.BrowseFox.G |
| BitDefender | Adware.Agent.NYV |
| Bkav | W32.HfsAdware.A835 |
| CAT-QuickHeal | AdWare.Agent.ahbx (Not a Virus), PUA.Grabrez.Gen |
| Comodo | Application.Win32.Altbrowse.AK |
| Cyren | W32/S-a6df1e11!Eldorado |
| DrWeb | Adware.Plugin.100, Trojan.BPlug.10, Trojan.BPlug.35, Trojan.Yontoo.1741 |
| ESET-NOD32 | a variant of Win32/BrowseFox.F, a variant of Win32/BrowseFox.G, a variant of Win32/BrowseFox.H, Win32/BrowseFox.I, a variant of Win32/BrowseFox.G potentially unwanted |
| Emsisoft | Adware.Agent.NYV (B) |
| F-Prot | W32/S-a6df1e11!Eldorado |
| F-Secure | Adware.Agent.NYV |
| Fortinet | Adware/Agent, Riskware/BrowseFox |
| GData | Adware.Agent.NYV |
| Ikarus | not-a-virus:AdWare.Win32.Agent |
| Jiangmin | Adware/Agent.izz, Packed.Krap.firh, Adware/Agent.jqp |
| K7AntiVirus | Adware ( 700000121 ) |
| K7GW | Adware ( 700000121 ) |
| Kaspersky | not-a-virus:AdWare.Win32.Agent.ahbx |
| Kingsoft | Win32.Troj.Agent.ah.(kcloud), Win32.Troj.Generic.a.(kcloud) |
| Malwarebytes | PUP.Optional.GrabRez.A, PUP.Optional.Sambreel.A |
| McAfee | Artemis!002663641DD4, Artemis!03B3D7E1525A, Artemis!7BCD29F9FE64, Artemis!B233445ABC36, Artemis!66FECB23224E |
| McAfee-GW-Edition | Artemis!002663641DD4, Artemis!03B3D7E1525A, Artemis!7BCD29F9FE64, Artemis!B233445ABC36, Artemis |
| MicroWorld-eScan | Adware.Agent.NYV |
| NANO-Antivirus | Riskware.Win32.Agent.cqsznp, Riskware.Win32.BPlug.djpkri |
| Rising | NS:PUF.SilenceInstaller!1.9DDF |
| Sophos | Generic PUA CP, Generic PUA LI, Generic PUA NF, Generic PUA IB |
| Symantec | Trojan.ADH.2 |
| TrendMicro-HouseCall | TROJ_GEN.F47V0201, TROJ_GEN.F47V0227, TROJ_GEN.F47V0225, TROJ_GEN.F47V0425, TROJ_GEN.F47V0221 |
| VIPRE | Adware.Agent, Trojan.Win32.Generic!BT, Yontoo (fs) |
| nProtect | Adware.Agent.NYV |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I've gathered 753 scan results for the GrabRez files. 137 of these scan reports came up with some sort of detection. You can review the full details of the scan results by examining the files listed above.
Analysis Details
The analysis is based on certificates with the following serial numbers:
- 63321f6f4fc45cbd2c4e1616655d18db