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bestvideodownloader.exe

KBM2 Installer

sterkly LLC

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application bestvideodownloader.exe by sterkly has been detected as adware by 13 anti-malware scanners. During install, it bundles potentially unwanted software on a user's computer at the same time without adequate consent.
Publisher:
sterkly LLC  (signed and verified)

Product:
KBM2 Installer

Version:
2.5.1.0

MD5:
9eb041678458be585c3cb2160844de04

SHA-1:
bb6ab64312d195fce2a7a33beb4556b14bf758c7

SHA-256:
e176dd0ff0c6bc50293c55c427289342e1ac792a68bf249e4fb5a718e3957a2b

Scanner detections:
13 / 68

Status:
Adware

Explanation:
May bundle additional potentially unwanted software such as adware during setup.

Analysis date:
4/24/2024 2:54:22 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
AdInject.Bdmngr
2015.0.3385

Dr.Web
Adware.Plugin.85
9.0.1.0224

Emsisoft Anti-Malware
Trojan.Win32.KBM.AMN
8.14.08.12.02

ESET NOD32
Win32/KBM (variant)
8.8630

Fortinet FortiGate
Riskware/MultiPlug
8/12/2014

F-Prot
W32/Adware.AKRY
v6.4.7.1.166

herdProtect (fuzzy)
variant of bestvideodownloader(1).exe (Adware)
2014.10.20.2

Malwarebytes
PUP.Optional.BundleInstaller.A
v2014.08.12.02

McAfee
Artemis!9EB041678458
5600.7041

Reason Heuristics
PUP.Installer.sterkly.T
14.8.12.2

Trend Micro House Call
TROJ_GEN.F47V0625
7.2.224

VIPRE Antivirus
sterkly LLC
20024

File size:
544.1 KB (557,176 bytes)

Product version:
2.5.1.0

Copyright:
(c) Sterkly LLC. All rights reserved.

Original file name:
KBM2.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\bestvideodownloader.exe

Digital Signature
Signed by:
sterkly LLC

Authority:
VeriSign, Inc.

Valid from:
1/21/2013 4:00:00 PM

Valid to:
2/21/2015 3:59:59 PM

Subject:
CN=sterkly LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=sterkly LLC, L=Carlsbad, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
113C6B2C72DEF110BE64B2ABBC52861E

File PE Metadata
Compilation timestamp:
6/20/2013 12:46:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:8Tq6uX5c0RzWguzZylIAllGVytvHdKme7IZhpYvQ2u:82610ZluglqytYmesZh4Q7

Entry address:
0x3A3C0

Entry point:
E8, 0E, 6F, 00, 00, E9, 89, FE, FF, FF, 3B, 0D, D0, 0B, 47, 00, 75, 02, F3, C3, E9, 95, 6F, 00, 00, 8B, FF, 55, 8B, EC, 56, 8B, 75, 14, 85, F6, 75, 04, 33, C0, EB, 61, 83, 7D, 08, 00, 75, 13, E8, D9, 35, 00, 00, 6A, 16, 5E, 89, 30, E8, 6C, 75, 00, 00, 8B, C6, EB, 48, 83, 7D, 10, 00, 74, 16, 39, 75, 0C, 72, 11, 56, FF, 75, 10, FF, 75, 08, E8, 66, 70, 00, 00, 83, C4, 0C, EB, C7, FF, 75, 0C, 6A, 00, FF, 75, 08, E8, B4, 31, 00, 00, 83, C4, 0C, 83, 7D, 10, 00, 74, BB, 39, 75, 0C, 73, 0E, E8, 8F, 35, 00, 00, 6A...
 
[+]

Entropy:
6.2273

Code size:
342.5 KB (350,720 bytes)

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