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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 20 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.
Publisher:
Sergei Ivanovich Drozdov  (signed and verified)

MD5:
f8759ac6d86e80baf2fb45b880c153c3

SHA-1:
bab9b982e6e9a1c035452f4ec733bb557085cb8a

SHA-256:
bcd44c1b549f36a81a958692ac308e093c0443557cabb62ba2a9a54c8f2108c3

Scanner detections:
20 / 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:
4/24/2024 11:57:49 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
1023

AhnLab V3 Security
Adware/Win32.Agent
14.04.18

Avira AntiVirus
ADWARE/Adware.Gen7
7.11.144.50

avast!
Win32:MultiPlug-AN [PUP]
2014.9-140418

AVG
Generic_r
2015.0.3501

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.540

Comodo Security
Application.Win32.Multiplug.R
18125

Dr.Web
Trojan.Crossrider.11868
9.0.1.0108

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
8.14.04.18.07

ESET NOD32
Win32/AdWare.MultiPlug (variant)
8.9694

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-18-04_6

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

Malwarebytes
PUP.Optional.MultiPlug.A
v2014.04.18.07

McAfee
PUP-FID!F8759AC6D86E
5600.7157

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.324

Panda Antivirus
Trj/Genetic.gen
14.04.18.07

Reason Heuristics
PUP.Installer.SergeiIvanovichDrozdov.K
14.4.18.6

Rising Antivirus
PE:Malware.MultiPlug!6.13CF
23.00.65.14416

Sophos
MultiPlug
4.98

VIPRE Antivirus
Trojan.Win32.Generic
28350

File size:
1.5 MB (1,609,672 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:
Sergei Ivanovich Drozdov

Authority:
Unizeto Technologies S.A.

Valid from:
1/8/2014 9:24:34 AM

Valid to:
1/8/2015 9:24:34 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 10:34:26 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
24576:963KZQJjYzo4N4KvmeIX+mtVPVaJ/eqLPmpilpLNohLotfLVekbZviXg3:ZZQ5jpymtVe/emPmpKpLN/f11KXc

Entry address:
0x10A9B

Entry point:
E8, 3E, 4A, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, D0, 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...
 
[+]

Code size:
103.5 KB (105,984 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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