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ytbmk_setup.exe

Boris Vladimirovich BOBOVSKY

The setup package is an adware installer (using InstalleRex) that will deploy with little or no user consent adware offerings including but not limited to browser extensions (add-ins, toolbars) that will inject various forms of advertising in the user's browser. The application ytbmk_setup.exe by Boris Vladimirovich BOBOVSKY has been detected as adware by 24 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
Boris Vladimirovich BOBOVSKY  (signed and verified)

MD5:
a14bf39c35afceb14e96b1838f7f176d

SHA-1:
4c30ec338200c3af6f6d715ad82ed0f65308b510

SHA-256:
ba8144abf128bb3f0cfe40db70311ce95f879ee0062614e0e8563ff9c0286367

Scanner detections:
24 / 68

Status:
Adware

Explanation:
Bundles additional adware products (monetized browser extensions, ad injectors) in the installer.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/24/2024 8:45:26 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
1017

Agnitum Outpost
PUA.Downloader
7.1.1

avast!
Win32:InstalleRex-AU [PUP]
2014.9-140423

AVG
Generic_r
2015.0.3495

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.565

Comodo Security
Application.Win32.Preloader.B
18153

Dr.Web
Trojan.Crossrider.3
9.0.1.0113

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
8.14.04.23.12

ESET NOD32
Win32/Preloader (variant)
8.9712

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-23-04_4

G Data
Gen:Variant.Adware.Dropper.101
14.4.24

IKARUS anti.virus
not-a-virus:WebToolbar.Win32.Cossder
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.176.11861

Malwarebytes
PUP.Optional.MultiPlug.A
v2014.04.23.12

McAfee
PUP-FGF!A14BF39C35AF
5600.7151

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.339

NANO AntiVirus
Trojan.Win32.Crossrider.cstnnp
0.28.0.59492

Panda Antivirus
Trj/Genetic.gen
14.04.23.12

Qihoo 360 Security
Malware.QVM10.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.BorisVladimirovichBOBOVSKY.L
14.3.7.10

Rising Antivirus
PE:PUF.Graftor!1.9C49
23.00.65.14421

Sophos
MultiPlug
4.98

Vba32 AntiVirus
AdWare.MegaSearch
3.12.26.0

VIPRE Antivirus
Trojan.Win32.Generic
28538

File size:
550.7 KB (563,920 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\addons\ytbmk_setup.exe

Digital Signature
Signed by:
Boris Vladimirovich BOBOVSKY

Authority:
Unizeto Technologies S.A.

Valid from:
12/27/2013 7:31:44 AM

Valid to:
12/27/2014 7:31:44 AM

Subject:
E=bob@borr.info, CN="Open Source Developer, Boris Vladimirovich BOBOVSKY", O=Boris Vladimirovich BOBOVSKY, C=UA

Issuer:
CN=Certum Level III CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:
1ADBC4E5D3604FB9725702528437E82A

File PE Metadata
Compilation timestamp:
9/9/2013 5:07:55 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:Ic1sFyvLt9f+bUczl1FdZ9iACsBpN5WBFBx8QM+/ZCJjT19RudDXTTK+bJ:hLzmbUczZZiAFl5aiQMCCJjBuR/d

Entry address:
0xD5B4

Entry point:
E8, 72, 4F, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 38, C0, 41, 00, 74, 13, 41, 83, F9, 2D, 72, F1, 8D, 48, ED, 83, F9, 11, 77, 0E, 6A, 0D, 58, 5D, C3, 8B, 04, CD, 3C, C0, 41, 00, 5D, C3, 05, 44, FF, FF, FF, 6A, 0E, 59, 3B, C8, 1B, C0, 23, C1, 83, C0, 08, 5D, C3, E8, 09, 19, 00, 00, 85, C0, 75, 06, B8, A0, C1, 41, 00, C3, 83, C0, 08, C3, E8, F6, 18, 00, 00, 85, C0, 75, 06, B8, A4, C1, 41, 00, C3, 83, C0, 0C, C3, 8B, FF, 55, 8B, EC, 56, E8, E2, FF, FF, FF, 8B, 4D, 08...
 
[+]

Code size:
88 KB (90,112 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to i1.stylefun.info  (198.7.61.118:80)

TCP (HTTP):
Connects to dl.softservers.net  (184.154.145.171:80)

TCP (HTTP):
Connects to c1.getapplicationmy.info  (54.201.215.30:80)

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