» ext_setup.exe
Overview
Analysis
File Details
Network (1)

ext_setup.exe

Ostap Laponov

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application ext_setup.exe by Ostap Laponov 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 WebPick InstalleRex installer. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.

File name:

ext_setup.exe

Publisher:

Ostap Laponov (signed and verified)

MD5:

e90a0dcbf12889307cc7495fd55aab3e

SHA-1:

26d5a9d3ec3bc9a4a73db0d13dfcc4aa55f80779

SHA-256:

7dfbeb0ea31c72a963001a4d03d7f6b122d5ee2745b1723f4068473af8d663de

Scanner detections:

1 / 68

Status:

Adware

Explanation:

Uses Web-Pick's 'File Product', an Installer which wraps various products and downloads and installs it silently through the process.

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:

4/25/2024 8:29:19 AM UTC (today)

Scan engine

Detection

Engine version

Reason Heuristics

PUP.WebPick.OstapLaponov.Bundler (M)

16.2.14.22

File size:

684.2 KB (700,632 bytes)

File type:

Executable application (Win32 EXE)

Bundler/Installer:

WebPick InstalleRex

Common path:

C:\users\{user}\appdata\local\temp\{random}.tmp\addons\ext_setup.exe

Digital Signature

Signed by:

Ostap Laponov

Authority:

COMODO CA Limited

Valid from:

9/9/2013 7:00:00 AM

Valid to:

9/10/2014 6:59:59 AM

Subject:

CN=Ostap Laponov, O=Ostap Laponov, STREET=Minskаya 16, L=Kiev, S=Kiev, PostalCode=04078, C=UA

Issuer:

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

Serial number:

00EA64F94CDE70375038736C9F1C0960DF

File PE Metadata

Compilation timestamp:

12/3/2013 11:27:36 AM

OS version:

5.1

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

10.0

CTPH (ssdeep):

12288:MtgyG9ZO6ZDjfyOQMSaP9R8v3iNaLa4QzE5l8SdYHtnaljQFmvNiENqHbvNvctJU:Mt376Z3fyOQv3TLa4QzyCgQ0mTNvcuvX

Entry address:

0x10687

Entry point:

E8, 38, 3F, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 28, F0, 41, 00, 74, 13, 41, 83, F9, 2D, 72, F1, 8D, 48, ED, 83, F9, 11, 77, 0E, 6A, 0D, 58, 5D, C3, 8B, 04, CD, 2C, F0, 41, 00, 5D, C3, 05, 44, FF, FF, FF, 6A, 0E, 59, 3B, C8, 1B, C0, 23, C1, 83, C0, 08, 5D, C3, E8, DC, 07, 00, 00, 85, C0, 75, 06, B8, 90, F1, 41, 00, C3, 83, C0, 08, C3, E8, C9, 07, 00, 00, 85, C0, 75, 06, B8, 94, F1, 41, 00, C3, 83, C0, 0C, C3, 8B, FF, 55, 8B, EC, 56, E8, E2, FF, FF, FF, 8B, 4D, 08... 
[+]

Entropy:

7.8656 (probably packed)

Code size:

96 KB (98,304 bytes)

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):

Connects to r1.stylezip.info (54.186.255.26:80)

Remove ext_setup.exe - Powered by Reason Core Security

herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.