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bestvideodownloadersetup-ol.exe

Best Video Downloader

Alactro LLC

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application bestvideodownloadersetup-ol.exe by Alactro has been detected as adware by 11 anti-malware scanners. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software. The file has been seen being downloaded from download.bestvideodownloader.com.
Publisher:
Alactro LLC  (signed and verified)

Product:
Best Video Downloader

Description:
Installer

Version:
2011.11.18.1757

MD5:
0ac102f50cf1689d77fe2c899283e1c7

SHA-1:
8525c240e3e5930074b1b395440647ec5c15cc0c

Scanner detections:
11 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/25/2024 1:23:42 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Adware.Generic
7.1.1

Avira AntiVirus
ADWARE/Yontoo.Gen2
7.11.135.146

Baidu Antivirus
Adware.Win32.Yontoo
4.0.3.14926

Comodo Security
UnclassifiedMalware
17898

Dr.Web
Adware.Siggen.24249
9.0.1.0269

ESET NOD32
Win32/Adware.Yontoo (variant)
8.9513

Fortinet FortiGate
Riskware/Yontoo
9/26/2014

NANO AntiVirus
Trojan.Win32.Siggen.bkkflm
0.28.0.58101

Reason Heuristics
PUP.Installer.Alactro.BB
14.9.26.20

Trend Micro House Call
TROJ_GEN.R42H1EQ
7.2.269

VIPRE Antivirus
Yontoo
27162

File size:
1.1 MB (1,122,296 bytes)

Product version:
1.00

Copyright:
Copyright (c) 2011 Alactro LLC. All rights reserved.

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Documents and Settings\{user}\My documents\downloads\bestvideodownloadersetup-ol.exe

Digital Signature
Signed by:
Alactro LLC

Authority:
GoDaddy.com, Inc.

Valid from:
5/26/2011 2:13:23 PM

Valid to:
5/26/2012 2:13:23 PM

Subject:
CN=Alactro LLC, O=Alactro LLC, L=Carlsbad, S=CA, C=US

Issuer:
SERIALNUMBER=07969287, CN=Go Daddy Secure Certification Authority, OU=http://certificates.godaddy.com/repository, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
27E40C73BA04BA

File PE Metadata
Compilation timestamp:
3/10/2011 6:55:28 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
24576:SbfU+ypvMOURv3iHzTiMIzOfECYQiyEu+Zig90uihmMgFZB/mXw8G4iK:rppvMOq2TWz0JMx1iu3nmA8QK

Entry address:
0x15B4

Entry point:
55, 8B, EC, 81, EC, CC, 05, 00, 00, 53, 56, 33, DB, 57, C6, 85, 34, FA, FF, FF, 00, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 00, 40, 40, 00, FF, 15, 70, 30, 40, 00, 89, 45, F8, 8D, 85, 3C, FE, FF, FF, 50, C7, 85, 3C, FE, FF, FF, 94, 00, 00, 00, FF, 15, 6C, 30, 40, 00, 85, C0, 75, 21, FF, 15, 14, 30, 40, 00, 50, 68, A8, 32, 40, 00, E8, 36, FA, FF, FF, 59, C7, 05, 04, 40, 40, 00, FF, 00, 00, 00, E9, 20, 02, 00, 00, 8B, 35, 68, 30, 40, 00, 68, 94, 32, 40, 00, 68, 84, 32, 40, 00, FF, D6, 50, FF, 15, 64, 30, 40...
 
[+]

Entropy:
7.9965

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file bestvideodownloadersetup-ol.exe has been seen being distributed by the following URL.

http://download.bestvideodownloader.com/BestVideoDownloaderSetup-OL.exe

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