ytab_setup.exe

Sergei Ivanovich Drozdov

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 Sergei Ivanovich Drozdov has been detected as adware by 31 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex installer. It is built using the Crossrider cross-browser extension toolkit. While the file utilizes the Crossrider framework and delivery services, it is not owned by Crossrider.
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Publisher:
Sergei Ivanovich Drozdov  (signed and verified)

MD5:
093b91fb362c5e74d902f4a16452b1fe

SHA-1:
89d359dafe2c259355014031a2e3c8015608ba52

SHA-256:
af74bbfaaf75d58349e347d1bb91312f88ce23a402db61bff49e8ce4e5ea6f4f

Scanner detections:
31 / 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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/3/2016 11:01:17 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
970

Agnitum Outpost
PUA.MultiPlug
7.1.1

AhnLab V3 Security
Adware/Win32.Agent
2014.06.11

Avira AntiVirus
TR/Graftor.141601.A
7.11.154.46

Antiy Labs AVL
GrayWare[AdWare:not-a-virus]/Win64.MultiPlag
1.0.0.1

avast!
Win32:MultiPlug-AA [PUP]
140608-0

AVG
Adware Generic_r.JY
2014.0.3955

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.805

Comodo Security
Application.Win32.Multiplug.R
18499

Dr.Web
Trojan.Crossrider.11979
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
8.14.06.10.10

ESET NOD32
Win32/AdWare.MultiPlug.R application
7.0.302.0

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

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-10-06_3

G Data
Gen:Variant.Adware.Dropper.101
14.6.24

IKARUS anti.virus
AdWare.Win32.CostMin
t3scan.1.6.1.0

Jiangmin
AdWare/JS.bf
KV140610

K7 AntiVirus
Unwanted-Program
13.1712358

K7 Gateway Antivirus
Trojan
13.1712358

Kaspersky
not-a-virus:AdWare.JS.MultiPlug
15.0.0.463

Kingsoft AntiVirus
Win32.Troj.Generic.a.(kcloud)
331020.49267

McAfee
PUP-FID!093B91FB362C
5600.7104

McAfee Web Gateway
PUP-FID!093B91FB362C
7.7104

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.483

NANO AntiVirus
Riskware.Win32.MultiPlug.cwjslc
0.28.0.60253

Panda Antivirus
Trj/Genetic.gen
14.06.10.10

Reason Heuristics
PUP.Installer.SergeiIvanovichDrozdov.K
14.6.10.9

Rising Antivirus
PE:Malware.Preloader!6.14D2
23.00.65.14608

Sophos
MultiPlug
4.98

Vba32 AntiVirus
AdWare.JS.MultiPlug
3.12.26.0

VIPRE Antivirus
Threat.4786450
30086

Remove ytab_setup.exe - Powered by Reason Core Security
File size:
1.5 MB (1,612,936 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
Authority:
Unizeto Technologies S.A.

Valid from:
1/8/2014 8:24:34 AM

Valid to:
1/8/2015 8:24:34 AM

Subject:
E=drozdov54@hotmail.com, CN="Open Source Developer, Sergei Ivanovich Drozdov", OU=Sedro Soft, O=Sergei Ivanovich Drozdov, C=RU

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

Serial number:
4E05AFB21C1318DB8A2C0669760C9050

File PE Metadata
Compilation timestamp:
4/10/2014 9:26:31 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
49152:ioZWrgRtvHO4/w0cYctyiUTvXXmy3Hgea+mhIlMaH+T5rBxCJ:ifg3u41cciUzXX/H2D/5rBxW

Entry address:
0x1089B

Entry point:
E8, BE, 4A, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 88, 21, 42, 00, E8, 9F, 21, 00, 00, E8, E0, 07, 00, 00, 0F, B7, F0, 6A, 02, E8, 51, 4A, 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, 10, 38, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Code size:
102.5 KB (104,960 bytes)

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

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

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