Did you just stumble upon a download or a file on your computer that has been digitally signed by Teal Kitty? Some of the security products refers to the detected files as Adware.SwiftBrowse.CH and W64/A-59c9c70a!Eldorado. The detection rate for the Teal Kitty files collected here is 55%. Please read on for more details.
You will typically see Teal Kitty when running the file. The publisher name shows up as the "Verified publisher" in the UAC dialog as the screengrab shows:

You can view the digital signature details for Teal Kitty with the following procedure:
Here's a screenshot of a file digitally signed by Teal Kitty:

As you can see in the screenshot above, Windows reports that "This digital signature is OK". This implies that the file has been published by Teal Kitty 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, etc. You can also view the address for Teal Kitty, such as the street name, city and country.
VeriSign Class 3 Code Signing 2010 CA has issued the Teal Kitty certificates. You can also view the details of the issuer by clicking the View Certificate button shown in the screenshot above.
These are the Teal Kitty files I've gathered, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 25/56 | {b1310693-0f73-4f69-a786-408f1fe53c5b}gw64.sys |
| 28/57 | {52806d69-11bd-473d-92ca-5de12211e2a2}gw64.sys |
| 39/55 | {d8411ef7-b368-4348-be7a-094d96a5e0a3}gw64.sys |
Here's the detection names for the Teal Kitty 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 |
| AVG | BrowseFox.61C, AdPlugin.DAI |
| AVware | Trojan.Win32.Generic!BT |
| Ad-Aware | Adware.SwiftBrowse.CH |
| AegisLab | Adware.Gen!c |
| Agnitum | Riskware.Agent! |
| Antiy-AVL | GrayWare[NetTool:not-a-virus]/Win64.NetFilter.a |
| Arcabit | Adware.SwiftBrowse.CH |
| Avast | Win32:BrowseFox-MI [PUP] |
| Avira | ADWARE/BrowseFox.drc |
| Baidu | Win32.Adware.BrowseFox.i |
| Baidu-International | Hacktool.Win64.NetFilter.A |
| BitDefender | Adware.SwiftBrowse.CH |
| Bkav | W64.HfsAdware.4A05, W64.HfsAdware.E047 |
| CAT-QuickHeal | PUA.Tealkitty.Gen |
| ClamAV | Win.Adware.Swiftbrowse-497, Win.Adware.Swiftbrowse-513 |
| Cyren | W64/A-59c9c70a!Eldorado |
| DrWeb | Trojan.Yontoo.1734 |
| ESET-NOD32 | a variant of Win64/NetFilter.A potentially unsafe |
| Emsisoft | Adware.SwiftBrowse.CH (B) |
| F-Prot | W64/A-59c9c70a!Eldorado |
| F-Secure | Adware.SwiftBrowse.CH |
| Fortinet | Adware/NetFilter |
| GData | Adware.SwiftBrowse.CH |
| Ikarus | PUA.BrowseFox |
| Jiangmin | AdWare/Yotoon.ru |
| K7AntiVirus | Adware ( 0040f9f21 ) |
| K7GW | Adware ( 0040f9f21 ) |
| Kaspersky | not-a-virus:NetTool.Win64.NetFilter.k |
| Malwarebytes | PUP.Optional.BrowseFox |
| McAfee | Artemis!5A0BE609ADAD |
| McAfee-GW-Edition | BehavesLike.Win64.PUPAmonetize.ph |
| MicroWorld-eScan | Adware.SwiftBrowse.CH |
| NANO-Antivirus | Trojan.Win64.Yontoo.dpiued |
| Panda | PUP/BrowseFox |
| SUPERAntiSpyware | Adware.SwiftBrowse/Variant |
| Sophos | Browse Fox (PUA) |
| TrendMicro | HS_BROWSEFOX.SM, PUA_BROWSEFOX |
| TrendMicro-HouseCall | HS_BROWSEFOX.SM, PUA_BROWSEFOX |
| VIPRE | Trojan.Win32.Generic!BT |
| Yandex | Riskware.Agent! |
| Zillya | Adware.Yotoon.Win64.14 |
| nProtect | Adware.SwiftBrowse.CH, Trojan-Clicker/W32.Yotoon.48784 |
The detection percentage is based on that I've gathered 168 scan reports for the Teal Kitty files. 92 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.
The analysis is based on certificates with the following serial numbers: