Plain Savings - 51% Detection Rate *
Did you just run into a download or a file on your computer that has a digital signature from Plain Savings? Some of the security products refers to the detected files as Adware.SwiftBrowse.CH and Trojan.Yontoo.1806. The detection rate for the Plain Savings files collected here is 51%. Please read on for more details.
You will probably notice Plain Savings when running the file. The publisher name is displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view additional details from the Plain Savings certificate with the following procedure:
- Open up Windows Explorer and locate the Plain Savings file
- Right-click the file and select Properties
- Click on the Digital Signatures tab
- Click the View Certificate button
Here is a screenshot of a file digitally signed by Plain Savings:
As you can see in the screencap above, Windows reports that "This digital signature is OK". This implies that the file has been published by Plain Savings and that the file has not been tampered with.
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 Plain Savings, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Plain Savings certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screencap above.
Plain Savings Files
These are the Plain Savings files I've collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 22/55 | {c5b0f3fc-b7a2-411e-b433-b08a92f3e6e1}gw64.sys |
| 38/57 | PlainSavingsbho.dll |
| 23/57 | {b6aa5331-3f75-4fea-a696-e6ae70496618}gw64.sys |
| 27/56 | {21264e59-1858-40f3-aeaf-512b7382754a}gw64.sys |
| 34/56 | 240714_t3.exe |
Scanner and Detection Names
Here is the detection names for the Plain Savings files. I have grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Adware.SwiftBrowse.CH, Gen:Variant.Adware.Mikey.11547 |
| AVG | AdPlugin.DAI, AdPlugin.DWJ, BrowseFox |
| AVware | Trojan.Win32.Generic!BT, Yontoo, Adware.Win32.Kranet |
| Ad-Aware | Adware.SwiftBrowse.CH, Gen:Variant.Adware.Mikey.11547, Adware.Generic.1377953 |
| Agnitum | Riskware.Agent! |
| AhnLab-V3 | PUP/Win32.BrowseFox |
| Antiy-AVL | GrayWare[NetTool:not-a-virus]/Win64.NetFilter.a, Trojan[:HEUR]/Win32.AGeneric |
| Arcabit | Trojan.Adware.Mikey.D2D1B, Adware.SwiftBrowse.CH, Adware.Generic.D1506A1 |
| Avira | ADWARE/BrowseFox.Gen2, ADWARE/BrowseFox.Gen |
| Baidu-International | Hacktool.Win64.NetFilter.A, Adware.Win32.BrowseFox.AE, Hacktool.Win64.NetFilter.k, Adware.Win32.BrowseFox.AV |
| BitDefender | Adware.SwiftBrowse.CH, Gen:Variant.Adware.Mikey.11547, Adware.Generic.1377953 |
| Bkav | W32.BrowseFoxAC.Adware, W32.HfsAdware.BA09 |
| ClamAV | Win.Adware.Swiftbrowse-497, Win.Adware.Agent-51126, Win.Trojan.Browsefox-190 |
| Comodo | Application.Win32.BrowseFox.AKP |
| Cyren | W64/A-59c9c70a!Eldorado, W32/S-9c4b2ea6!Eldorado, W32/Adware.SNOS-8035 |
| DrWeb | Trojan.Yontoo.1806 |
| ESET-NOD32 | a variant of Win64/NetFilter.A potentially unsafe, a variant of Win32/BrowseFox.AE potentially unwanted, Win32/BrowseFox.AV potentially unwanted |
| Emsisoft | Adware.SwiftBrowse.CH (B), Gen:Variant.Adware.Mikey.11547 (B), Adware.Generic.1377953 (B) |
| F-Prot | W64/A-59c9c70a!Eldorado, W32/S-9c4b2ea6!Eldorado, W32/Adware.ALRZ |
| F-Secure | Adware.SwiftBrowse.CH, Gen:Variant.Adware.Mikey, Adware.Generic.1377953 |
| Fortinet | Riskware/BrowseFox, Adware/Kranet |
| GData | Adware.SwiftBrowse.CH, Gen:Variant.Adware.Mikey.11547, Adware.Generic.1377953 |
| Jiangmin | AdWare/SwiftBrowse.dxt, AdWare/Kranet.iuh |
| K7AntiVirus | Adware ( 0040f9f21 ), Adware ( 004b8df51 ), Adware ( 004c1e181 ) |
| K7GW | Adware ( 0040f9f21 ), Adware ( 004b8df51 ), Adware ( 004c1e181 ) |
| Kaspersky | not-a-virus:NetTool.Win64.NetFilter.k, not-a-virus:AdWare.Win32.Kranet.fi |
| Malwarebytes | PUP.Optional.PlainSavings.A, PUP.Optional.PlainSavings |
| McAfee | Artemis!1959B07DCE0B, Artemis!5E9197F2EFB1 |
| McAfee-GW-Edition | BehavesLike.Win64.PUPAmonetize.ph, Artemis!PUP, BehavesLike.Win32.BadFile.gc |
| MicroWorld-eScan | Adware.SwiftBrowse.CH, Gen:Variant.Adware.Mikey.11547, Adware.Generic.1377953 |
| NANO-Antivirus | Trojan.Win32.Yontoo.dnkubo, Trojan.Win32.Siggen6.droatj |
| Panda | PUP/PlainSavings |
| Qihoo-360 | HEUR/QVM30.1.Malware.Gen, Win32/Virus.Adware.708 |
| Rising | PE:Adware.BrowseFox!6.1D8B[F1], PE:Adware.BrowserFox!1.A127 [F] |
| SUPERAntiSpyware | Adware.SwiftBrowse/Variant, PUP.BrowseFox/Variant |
| Sophos | Generic PUA CI (PUA), Generic PUA DI (PUA) |
| Symantec | SAPE.Yontoo.d5 |
| TrendMicro | TROJ_GEN.R02KC0EE815 |
| VBA32 | AdWare.MSIL.Agent, AdWare.Kranet |
| VIPRE | Trojan.Win32.Generic!BT, Yontoo, Adware.Win32.Kranet |
| Zillya | Adware.BrowseFox.Win32.7572, Adware.Yotoon.Win64.14 |
| nProtect | Adware.SwiftBrowse.CH, Trojan-Clicker/W32.Yotoon.48784 |
* How the Detection Percentage is Calculated
The detection percentage is based on the fact that I have gathered 281 scan reports for the Plain Savings files. 144 of these scan results came up with some sort of detection. You can review the full details of the scan reports by examining the files listed above.
Analysis Details
The analysis is based on certificates with the following serial numbers:
- 3278fba8062f9f07cfb8af40eed9d7b1