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setup.exe

YeS ApPS

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application setup.exe by YeS ApPS 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 get.downserver4.com.
Publisher:
KVLUK  (signed by YeS ApPS)

Product:
KVLUK

Version:
7719.1569.856.2401

MD5:
1d67a1e651d051d870b95af5195fe8d2

SHA-1:
335c37ff5ea863d468c8cfb1f967d785f6699c29

SHA-256:
fa871dafbe2b15469d9a5ecc1d77027bd84374a3f1acc4ecb2aa7ba644ae8645

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 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:
5/18/2024 7:20:26 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.YeSApPS.Bundler (M)
16.6.28.19

File size:
799.3 KB (818,472 bytes)

Product version:
7719.1569.856.2401

Copyright:
KVLUK

Trademarks:
KVLUK

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
YeS ApPS

Authority:
thawte, Inc.

Valid from:
6/7/2015 9:00:00 PM

Valid to:
12/17/2015 9:59:59 PM

Subject:
CN=YeS ApPS, O=YeS ApPS, L=Dublin, S=Dublin, C=IE

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
3936AF751F55E47EB00BACD23BEDCA72

File PE Metadata
Compilation timestamp:
12/5/2009 8:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:nVXiv3lgldD17SxlI4RBIkvYELI5jh+860:VXiv36ldDVSxBRSkvLIFB

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.downserver4.com/.../1433884552/1433884552?67932686013YV5rLy85aDcxMi0xLB1hOyswLzYyI2Y2KjAwLx5oPS8jXio0S1NHOj9SJWBmYlpoZ141SUUwLUtNWVBjZB5jY25rNywnI3hjaDcw

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