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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:
SCYSW  (signed by YeS ApPS)

Product:
SCYSW

Version:
4141.1569.853.592

MD5:
2acf6e160b93f7be7bcd14a8fdc5d0bc

SHA-1:
528c0e83d51239729b73880e24f52a50cc1db9cb

SHA-256:
78a52ed5a8cd5bf6357524141350bebf27c539a179a2039e583ec5d756728f09

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:
11/23/2024 8:25:37 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.YeSApPS.Bundler (M)
16.2.13.7

File size:
799.3 KB (818,512 bytes)

Product version:
4141.1569.853.592

Copyright:
SCYSW

Trademarks:
SCYSW

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):
12288:4reJKnQ4asN602zp2OkOxidn1jLTb0/+VCllX1hj7I/xdn1j9fc8vy4hi:4lnIseQOkc0BsQCTnUdo86n

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/.../1433886860/1433886860?21279673236ZWRyKyg5aTovMCo1MiRdNCsxMjQwIGo8MSwpLx9rOy0gYjA7R0xHO0JQI11qaGFkYF42cTcuKk11dWxlXR9mYWxoOzIuH3FjaTou

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