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ysd.exe

Cyberservices B.V.

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application ysd.exe by Cyberservices B.V has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the OutBrowse Revenyou installer. The file has been seen being downloaded from www.soft-ware.net.
Publisher:
Cyberservices B.V.  (signed and verified)

MD5:
f62703eee5a6d8d0a8caa3f60648b779

SHA-1:
0eb2334eb8b3f7f1a0800ce4463056c9347b0d90

SHA-256:
5991345f0484d378b334ea0b1fff3ad43cb272432dd3c6b7629690ed4127dbbf

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/24/2024 7:17:10 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.CyberservicesBV.Bundler (M)
16.3.6.11

File size:
671.3 KB (687,432 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou

Language:
English (United States)

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

Digital Signature
Signed by:
Cyberservices B.V.

Authority:
COMODO CA Limited

Valid from:
2/10/2014 1:00:00 AM

Valid to:
2/11/2016 12:59:59 AM

Subject:
CN=Cyberservices B.V., O=Cyberservices B.V., STREET=Keizersgracht 62-64 NL, L=Amsterdam, S=Nordholland, PostalCode=1015CS, C=NL

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

Serial number:
797CAC4561E8B8B21910CD01E0002669

File PE Metadata
Compilation timestamp:
11/27/2014 10:25:08 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:U2U2Av5QtLXCE4dId9eE47UJOE6y+w5JvDSuVX1Fa7sjX:URvineKOEpfvPVFoa

Entry address:
0x2DCD5

Entry point:
E8, 98, 65, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 53, 56, 8B, F1, 33, DB, 3B, F3, 75, 16, E8, 5E, 1A, 00, 00, 6A, 16, 5E, 89, 30, E8, 02, 1A, 00, 00, 8B, C6, E9, 8F, 00, 00, 00, 57, 39, 5D, 08, 77, 13, E8, 42, 1A, 00, 00, 6A, 16, 5E, 89, 30, E8, E6, 19, 00, 00, 8B, C6, EB, 75, 33, C9, 39, 5D, 10, 88, 1E, 0F, 95, C1, 41, 39, 4D, 08, 77, 09, E8, 1F, 1A, 00, 00, 6A, 22, EB, DB, 8B, 4D, 0C, 83, C1, FE, 83, F9, 22, 77, C9, 8B, CE, 39, 5D, 10, 74, 0B, 33, DB, 43, C6, 06, 2D, 8D, 4E, 01, F7, D8, 8B, F9...
 
[+]

Code size:
400.5 KB (410,112 bytes)

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

http://www.soft-ware.net/getfile/youtube-song-downloader/.../ysd.exe

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