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quizscope.exe

QuizScope Installer

QuizScope

The application quizscope.exe by QuizScope has been detected as a potentially unwanted program 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 NSIS (Nullsoft Scriptable Install System) installer. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs.
Publisher:
QuizScope  (signed and verified)

Product:
QuizScope Installer

Version:
4.0.4504.0

MD5:
824fc00df4149e5e3200dc5377a1f7f1

SHA-1:
41522703b52ea667f4a1135371482af19c346fb3

SHA-256:
ea1a69a83edcfc4b5daf5806e48f05b677c5c15b7a55273496b6a7d7c064bc59

Scanner detections:
1 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
7/6/2025 7:26:16 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.OutBrowse (M)
17.3.9.9

File size:
272.5 KB (279,016 bytes)

Product version:
4.0.4504.0

Copyright:
Copyright (C) 2015

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

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

Digital Signature
Signed by:
QuizScope

Authority:
thawte, Inc.

Valid from:
9/8/2015 5:00:00 PM

Valid to:
9/8/2016 4:59:59 PM

Subject:
CN=QuizScope, O=QuizScope, L=Irvine, S=California, C=US

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

Serial number:
6334CF32E921A4E1CD4C0C18E1CEBE72

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

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...
 
[+]

Entropy:
7.9129

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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