84,488,480 programs installed

Should I remove TabNav?

What percent of users and experts removed it?
67% remove it33% keep it
Overall Sentiment
What do people think about it?
(click star to rate)
How common is it?
Global Rank #39,721
Reach 0.0025%
Lifespan of installation (until removal)
< 2.54 days
74.87 days >
Average installed length: 39.34 days


VersionDistribution 46.00% 18.00% 36.00%

Other programs by FlowSurf Apps


What is TabNav?  (from FlowSurf Apps)

Flowsurf is FREE and is Ad supported. Flowsurf will increase your search speed and efficiency by adding a button on the right side Google page allowing you to navigate to the next page like you would do on a Tablet.


TabNav is a program developed by FlowSurf Apps. The most used version is, with over 98% of all installations currently using this version. During setup, the program registers itself to launch on boot through a Windows Schedule Task in order to automatically start-up (this is typically done to avoid any UAC prompts). It adds a background controller service that is set to automatically run. Delaying the start of this service is possible through the service manager. The main program executable is setupfs_1123.exe. A vast majority of those who have this installed end up removing it just after a couple weeks. The software installer includes 32 files and is usually about 12.72 MB (13,336,622 bytes). In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. While about 20% of users of TabNav come from United Kingdom, it is also popular in Germany and France.
  • Possible malware installed by this program
  • Starts automatically
  • Adds a background Windows Service
  • Many experts agree, if you don't use it you should remove it!
Warning, multiple anti-virus scanners have detected possible malware in TabNav.
setupfs_1123.exe (369c15bae2ca70bc466fc2a53760fb1a) has been flagged by the following 23 scanners:
Anti-Virus softwareVersionDetection
Antiy-AVL Trojan/Win32.SGeneric
avast! 2014.9-150413 Win32:Malware-gen
AVG 2016.0.3141 Generic6
Avira TR/Agent.5442433
AVware Trojan.Win32.Generic!BT
Baidu-International Trojan.NSIS.Adload.AK
Comodo Security 21695 ApplicUnwnt
Cyren W32/Trojan.PRUI-3556
Dr.Web Trojan.KillFiles.23205
ESET-NOD32 9.11444 a variant of Win32/Komodia.A potentially unsafe
IKARUS anti.virus t3scan. PUA.FlowSurf
K7 AntiVirus 13.202.15530 Unwanted-Program
K7GW 13.202.15530 Unwanted-Program ( 004b89781 )
Kaspersky UDS:DangerousObject.Multi.Generic
McAfee 5600.6797 Artemis!369C15BAE2CA
McAfee-GW-Edition 7.6797 BehavesLike.Win32.Downloader.tc
NANO AntiVirus Trojan.Win32.KillFiles.dobcbg
Norman 10.20150413 Troj_Generic.YLGRY
Qihoo-360 HEUR/QVM42.0.Malware.Gen
Symantec 4/13/2015 rev. 2 Trojan.Gen
Trend Micro 10.465.13 TROJ_GEN.R00UC0OBD15
TrendMicro-HouseCall 7.2.103 TROJ_GEN.R00UC0OBD15
VIPRE Antivirus 39180 Trojan.Win32.Generic!BT
zufap3002.exe (2d30d06469ad27a869d63ecc1d4276f1) has been flagged by the following 16 scanners:
Anti-Virus softwareSoftware versionDetection
avast! 8.0.1489.320 NSIS:Adware-TD [Adw]
AVware Trojan.Win32.Generic!BT
Baidu-International Adware.Win32.Agent.Elnx
Bkav FE W32.Clod662.Trojan.1e8e
Dr.Web Trojan.DownLoader13.49633
ESET-NOD32 12092 NSIS/TrojanDownloader.Adload.AK
K7 AntiVirus 9.208.16884 Riskware ( 0040eff71 )
K7GW 9.208.16886 Riskware ( 0040eff71 )
Kaspersky UDS:DangerousObject.Multi.Generic
McAfee Artemis!2D30D06469AD
McAfee-GW-Edition v2015 BehavesLike.Win32.BadFile.qc
NANO AntiVirus Trojan.Nsis.Downloader.duuajo
Qihoo-360 HEUR/QVM42.0.Malware.Gen
Rising Antivirus PE:Trojan.Win32.Generic.18D0C1A5!416334245
Symantec 20141.2.0.56 Trojan.Gen.2
VIPRE Antivirus 42866 Trojan.Win32.Generic!BT
abengine.exe (50a84b3af5137c7eb5ef0b041865a2fc) has been flagged by the following 13 scanners:
Anti-Virus softwareSoftware versionDetection
Agnitum Outpost Riskware.Agent!
Avira ADWARE/Komodia.1332576
AVware Trojan.Win32.Generic!BT
Baidu-International Hacktool.Win32.Komodia.A
ESET-NOD32 12100 a variant of Win32/Komodia.A potentially unsafe
K7 AntiVirus 9.209.16902 Unwanted-Program ( 004b89781 )
K7GW 9.209.16902 Unwanted-Program ( 004b89781 )
Malwarebytes PUP.Optional.Winsock.HijackBoot.A
McAfee Artemis!50A84B3AF513
McAfee-GW-Edition v2015 Artemis
Symantec 20141.2.0.56 Trojan.Gen.2
Total Defense Heur/TrojanHorse.ZCIC!suspicious
VIPRE Antivirus 42930 Trojan.Win32.Generic!BT
       View all 52 all detections

Program detailsProgram details

Displayed publisher: TabNav
URL: www.flowsurf.net
Installation folder: C:\Program Files\tabnav
Uninstaller: C:\Program Files\TabNav\uninstall.exe
Estimated size: 12.72 MB

Program filesFiles installed by TabNav

Program executable:setupfs_1123.exe (Malware detected)
Path:C:\Program Files\tabnav\setupfs_1123.exe
Additional files:
  • uninstall.exe - TabNav
  • abenginecert.dll (by Abengine)
  • abengine64.dll (by Abengine)
  • lengine64.exe
  • abengine.dll
  • abengine.exe
  • abenginep.exe
  • abenginew.exe
  • abenginewd.dll
  • lengine.exe
  • isj.exe
  • zufap3002.exe

Program behaviorsBehaviors exhibited

Scheduled Task (Boot/Login)
  • zufap3002.exe is automatically launched at startup through a scheduled task named zufap3002.
2 Services
  • isj.exe runs as a service named 'Injector Service' (InjectorService) "Injector Service".
  • abengine.exe runs as a service named 'abengine' (abengine) "AbEngine protects your browser".

How do I remove TabNav?

You can uninstall TabNav from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program TabNav, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove TabNav.
  4. If for some reason uninstallation fails, please install Microsoft's uninstall fixer utility which will help fix problems with programs that can't be uninstalled at support.microsoft.com.

Win 7 (SP1) 50%
Win XP 2%
Windows Service? Yes
(Installs a service)
Uninstall it 67%
Keep it 33%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 52.00%
Windows 10 40.00%
Windows Vista 6.00%
Windows XP 2.00%
Which OS releases does it run on?
Windows 8.1 26.00%
Windows 7 Home Premium 20.00%
Windows 7 Professional 16.00%
Windows 7 Ultimate 14.00%
Windows 8 4.00%
Windows 10 Pro Technical ... 4.00%

Distribution by countryGeography

20.37% of installs come from United Kingdom
Which countries install it?
  United Kingdom 20.37%
  Germany 14.81%
  France 12.96%
  Italy 12.96%
  United States 9.26%
  Spain 7.41%
  Netherlands 7.41%
  Ireland 7.41%
  DK 3.70%
  Norway 1.85%
  Finland 1.85%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Hewlett-Packard 24.39%
Acer 17.07%
Lenovo 12.20%
ASUS 9.76%
Sony 9.76%
Dell 7.32%
Medion 4.88%
MSI 4.88%
Samsung 2.44%
Intel 2.44%
Packard Bell 2.44%
Common models
Sony VGN-FS415E 2.33%
Sony SVT1312B4E 2.33%
Sony SVF1521J1EW 2.33%
Sony SVE1512M1EW 2.33%
Samsung 700T1C 2.33%
PACKARD BELL BV EasyNote ... 2.33%


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