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ytab_setup.exe

Kiril Klimko

The is the installer for the WebPick InstalleRex download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application ytab_setup.exe by Kiril Klimko has been detected as adware by 29 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex installer. It is built using the Crossrider cross-browser extension platform. While the file utilizes the Crossrider framework and delivery services, it is not owned by Crossrider.
Publisher:
Kiril Klimko  (signed and verified)

MD5:
fcbde01fbb363d757f8f9cc8f1d508e6

SHA-1:
5ee0e60e1106b1fbe418cc4471cb2127193db147

SHA-256:
e706b854703002bfe1d8c9aa37c76332031962ec2a1869c4a1868d015d0c4ed6

Scanner detections:
29 / 68

Status:
Adware

Explanation:
The software may change the browser's home page and search provider settings as well as display advertisements.

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:
4/23/2024 6:03:12 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
828

Agnitum Outpost
PUA.MultiPlug
7.1.1

AhnLab V3 Security
Adware/Win32.Agent
2014.10.31

Avira AntiVirus
TR/Graftor.141601.A
7.11.182.78

avast!
Win32:MultiPlug-AC [PUP]
141025-0

AVG
Adware Generic5.APLW
2014.0.4040

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.1515

Clam AntiVirus
Win.Adware.Agent-6652
0.98/21411

Comodo Security
Application.Win32.Multiplug.GETF
19944

Dr.Web
Trojan.Crossrider.5139
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
14.10.29

ESET NOD32
Win32/AdWare.MultiPlug.R application
7.0.302.0

Fortinet FortiGate
Riskware/Generic.AC.1814531
10/30/2014

F-Prot
W32/MultiPlug.C.gen
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-30-10_5

G Data
Gen:Variant.Adware.Dropper.101
14.10.24

IKARUS anti.virus
Win32.SuspectCrc
t3scan.1.8.3.0

K7 AntiVirus
Unwanted-Program
13.185.13853

Malwarebytes
PUP.Optional.MultiPlug
v2014.10.30.11

McAfee
PUP-FID
5600.6962

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.909

NANO AntiVirus
Trojan.Win32.Crossrider.cvopfn
0.28.6.62995

Quick Heal
AdWare.MultiPlag.ace
10.14.14.00

Reason Heuristics
PUP.Installer.KirilKlimko.K
14.10.29.20

Rising Antivirus
PE:Malware.MultiPlug!6.13CF
23.00.65.141028

Sophos
MultiPlug
4.98

Vba32 AntiVirus
AdWare.Agent
3.12.26.3

VIPRE Antivirus
Threat.4150696
34232

Zillya! Antivirus
Adware.Agent.Win32.9333
2.0.0.1972

File size:
1.5 MB (1,579,248 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

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

Digital Signature
Signed by:
Kiril Klimko

Authority:
COMODO CA Limited

Valid from:
9/2/2013 5:00:00 PM

Valid to:
9/3/2014 4:59:59 PM

Subject:
CN=Kiril Klimko, O=Kiril Klimko, STREET=Perova 21, L=Kiev, S=Kiev, PostalCode=02125, C=UA

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
4F8445DA07CAF9C24D869920925BA182

File PE Metadata
Compilation timestamp:
3/16/2014 5:34:27 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
24576:1/3ZkZT+HnqTgK8Mq0/qJGRPIQtU1V/4HUV+gtmW1PX+IY4lcz0Ucb1d:zkZKHtOlPIGU1VuUVNN+IYQnUcbH

Entry address:
0x10A4B

Entry point:
E8, 3E, 4A, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, B8, 21, 42, 00, E8, 1F, 21, 00, 00, E8, E0, 07, 00, 00, 0F, B7, F0, 6A, 02, E8, D1, 49, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, 90, 37, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.9004  (probably packed)

Code size:
103 KB (105,472 bytes)

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

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=12703474&publisher_id=270&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=38110422&external_id=0&session_id=76220844&hardware_id=88924318&installer_file_name=ytab_setup

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