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yosetup.exe

RepkaSoft

The application yosetup.exe by RepkaSoft has been detected as a potentially unwanted program by 4 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The installer uses the OpenCandy monitzation platform which will donwload and install offers in the setup for potentially unwanted software including ad/search-supported toolbars. The file has been seen being downloaded from yowindow.com.
Publisher:
RepkaSoft  (signed and verified)

MD5:
d4b58c1fec6414aa5d84634e73d28c2a

SHA-1:
c4f8fe9a1e2eea1044d0e4b690c79f976a0dbcda

SHA-256:
1a50aa27180e1922e7dd0e139cfe8ae7f64a8d9df7dc670adc2942c9a1b6a41e

Scanner detections:
4 / 68

Status:
Potentially unwanted

Explanation:
Packages the OpenCandy software bundler that offers to install additional software and may include web browser add-ons and toolbars which display advertising (based on publisher settings and geo context).

Analysis date:
11/27/2024 2:45:01 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.OpenCandy.6
9.0.1.087

ESET NOD32
Win32/OpenCandy
8.9511

Malwarebytes
PUP.Optional.OpenCandy
v2014.03.28.07

Rising Antivirus
PE:PUF.OpenCandy!1.9DE5
23.00.65.14326

File size:
7.6 MB (7,957,384 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\yosetup.exe

Digital Signature
Signed by:
RepkaSoft

Authority:
VeriSign, Inc.

Valid from:
10/29/2012 1:00:00 AM

Valid to:
10/30/2013 12:59:59 AM

Subject:
CN=RepkaSoft, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=RepkaSoft, L=Saint-Petersburg, S=Russian Federation, C=RU

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
31CB753697DB3EF2FDFB9971383D9449

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
196608:8ZXQDEDh4R5sUJJc6Dc+PIalxtiyPiJMdjwhFn8xftrRS:8o3R5sGJXPIabtiyFjn5trY

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file yosetup.exe has been seen being distributed by the following URL.

http://yowindow.com/.../yosetup.exe

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