DLB File: What is it?

Reporter:   |   Edited: November 26, 2018

Microsoft Silver

DLB File Summary

Most DLB files can be viewed with seven known software applications, typically Kaspersky Anti-Virus developed by Kaspersky Lab. and associated with the Troj/Dloadr-AHT Data format as it's primary file type. The DLB File Extension are listed predominantly as Uncommon Files.

The DLB File Extension can be viewed on the Windows, Mac, and iOS operating systems. They are supported on both desktop and mobile devices. DLB files have a "Low" Popularity Rating; this means that they are not present on most devices.

To learn more about DLB files and their associated software applications, please see the information below. Plus, we provide a basic troubleshooting guide to solve problems with opening DLB files.

Low
File Type Popularity
2976
Position

/ 11690

Active

Mode

26

November

2018

Refreshed

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Known DLB Files


Chief DLB Description

.DLB
File Format:.dlb
Type:Troj/Dloadr-AHT Data

DLB file extension is mostly used by Troj/Dloadr-AHT trojan. Troj/Dloadr-AHT trojan is dangerous and has the ability to access the internet and to use HTTP in communication with a remote server. When Troj/Dloadr-AHT trojan first runs, it duplicates itself in kernels8.exe which is a windows system folder. Then it creates Temp\1.dlb and Temp\4.dlb files.

Programmer: Symantec Corporation
Division:Uncommon Files
Location: HKEY_CLASSES_ROOT\.dlb

Software Programs That Open The Troj/Dloadr-AHT Data:


Kaspersky Anti-Virus by Kaspersky Lab

Windows
Windows Phone
Mac
iOS
Android
Linux

BitDefender by Bitdefender

Windows
Mac
Android

Avast Antivirus by Avast Software

Windows
Mac
iOS
Android

ESET Nod32 Antivirus by ESET

Windows
Windows Phone
Mac
Android
Linux
Solaris
FreeBSD

AVG Internet Security by AVG Technologies

Windows
Mac
Android

Norton Antivirus by Symantec Corporation

Windows

Avira AntiVir Personal by Avira Operations GmbH & Co. KG.

Windows
iOS
Android
OS X El Capitan

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DLB File Popularity


OS Rank

Windows 7 (48%)
Windows 10 (42%)
Windows 8.1 (5%)
Windows XP (2%)

Popular Mobile Brands

Samsung (28.86%)
Apple (21.83%)
Huawei (9.25%)
Xiaomi (6.74%)
LG (3.11%)


Understanding DLB Issues


Common Problems Opening DLB Files

Kaspersky Anti-Virus Disappeared

When you double-click your DLB file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". If so, it typically means that you don't have Kaspersky Anti-Virus installed for %%os%%. Your operating system cannot associate your DLB with Kaspersky Anti-Virus, so double-clicking the file won't work.


Tip: Another DLB-related program can be selected to open the file by clicking "Show Apps" and finding the application.


Outdated Kaspersky Anti-Virus

Sometimes your installed version of Kaspersky Anti-Virus won't support your Troj/Dloadr-AHT Data file. If you've got the wrong version of Kaspersky Anti-Virus installed, you'll need to install the correct version. This problem is predominately due to having a Troj/Dloadr-AHT Data file version that was created by a newer version of Kaspersky Anti-Virus than what you have installed on your PC.


Tip: Find clues on the correct software version by right-clicking your DLB file and clicking "Properties".


Primarily, problems experienced when opening DLB files are due to having the incorrect version of Kaspersky Anti-Virus installed on your computer.


More Causes of Problems Opening DLBs

Assuming you have the right Kaspersky Anti-Virus version installed, other problems can prevent you from opening DLB files. If you are still having problems opening DLB files, there may be other issues that are preventing you from opening these files. These other problems include (listed in order from most to least common):

  • Windows Registry DLB file paths that are incorrect
  • Deletion of the DLB file description from the Registry by mistake
  • Incomplete or bad installation of a software application associated with the DLB format
  • Your DLB file is corrupted (issues with your Troj/Dloadr-AHT Data file itself)
  • Your DLB is infected with malware
  • DLB-related hardware has device drivers that obsolete
  • Too many applications are open on your PC to load your Troj/Dloadr-AHT Data file successfully

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