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dmaster.exe

Evgen Kugitko

The is the installer for the WebPick InstalleRex download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application dmaster.exe by Evgen Kugitko 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. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
uTorrent Setup Engine  (signed by Evgen Kugitko)

Product:
uTorrent Setup Engine

Version:
10.01.238

MD5:
cdfe3ef713a9806038a812d8ab88ab88

SHA-1:
92b2fe7af207fcae828fa000e57572c5af4e1730

SHA-256:
8ca1f8caeb6e2295a73d331210e0b8705249815a02d7c22e4022a89d6a91f874

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
5/15/2024 10:13:29 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Webpick (M)
17.3.15.8

File size:
705.2 KB (722,152 bytes)

Product version:
10.01

Copyright:
Copyright (C) 2004 uTorrent

Original file name:
uTorrent.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

Digital Signature
Signed by:
Evgen Kugitko

Authority:
Thawte, Inc.

Valid from:
9/24/2014 3:00:00 AM

Valid to:
9/25/2015 2:59:59 AM

Subject:
CN=Evgen Kugitko, OU=Individual Developer, O=No Organization Affiliation, L=Kiev, S=Kiev, C=UA

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
4179EA1BEC59D4CA7E66862832555480

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0x199B69

Entry point:
4D, 5A, 50, 00, 02, 00, 00, 00, 04, 00, 0F, 00, FF, FF, 00, 00, B8, 00, 00, 00, 00, 00, 00, 00, 40, 00, 1A, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 01, 00, 00, BA, 10, 00, 0E, 1F, B4, 09, CD, 21, B8, 01, 4C, CD, 21, 90, 90, 54, 68, 69, 73, 20, 70, 72, 6F, 67, 72, 61, 6D, 20, 6D, 75, 73, 74, 20, 62, 65, 20, 72, 75, 6E, 20, 75, 6E, 64, 65, 72, 20, 57, 69, 6E, 33, 32, 0D, 0A, 24, 37, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Code size:
687 KB (703,488 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)

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