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InstallUtil.exe

Microsoft .NET Framework

ClientConnect LTD

The file belongs to the ClientConnect (Conduit/Perion) platform, a utility that bundles and monetizes search toolbars and browser add-ons. While the file properties state the file is developed by 'Microsoft Corporation', this is not the case and it is designed just to look like a legitimate Microsoft system file. The application InstallUtil.exe, “.NET Framework installation utility” by ClientConnect has been detected as adware by 8 anti-malware scanners. This is a setup and installation application and has been known to bundle potentially unwanted software.
Publisher:
Microsoft Corporation  (signed by ClientConnect LTD)

Product:
Microsoft® .NET Framework

Description:
.NET Framework installation utility

Version:
2.0.50727.5483 (Win7SP1GDR.050727-5400)

MD5:
986844a64539560c1fb92de5410c9c0d

SHA-1:
cfd19cf30585096a1ebec3cc9df45f6142117857

SHA-256:
b137fa88a7698ce0c78dd7ccb98d35d94528365412c3d7a8f6de4164cc76aa25

Scanner detections:
8 / 68

Status:
Adware

Explanation:
Bundles the Conduit Toolbar and/or Conduit Search Protect.

Analysis date:
5/7/2024 12:19:26 PM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
PUA.Win32.ClientConnect
4.0.3.16131

Bkav FE
W32.HfsAdware
1.3.0.7383

Dr.Web
Adware.Conduit.283
9.0.1.031

ESET NOD32
Win32/ClientConnect.A potentially unwanted application
10.7.0.302.0

Quick Heal
PUA.Clientconn.Gen
1.16.14.00

Reason Heuristics
PUP.Conduit.ClientConnect.Installer (M)
16.1.31.17

Trend Micro House Call
Suspicious_GEN.F47V0116
7.2.31

VIPRE Antivirus
Threat.4786236
42940

File size:
34.2 KB (35,040 bytes)

Product version:
2.0.50727.5483

Copyright:
© Microsoft Corporation. All rights reserved.

Original file name:
InstallUtil.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\agent\installutil.exe

Digital Signature
Signed by:
ClientConnect LTD

Authority:
VeriSign, Inc.

Valid from:
11/24/2014 1:00:00 AM

Valid to:
11/24/2016 12:59:59 AM

Subject:
CN=ClientConnect LTD, O=ClientConnect LTD, L=Ness Ziona, S=Israel, C=IL

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
07A465C6BD7A554BCBAC4E39D5889DAF

File PE Metadata
Compilation timestamp:
2/27/2014 10:32:00 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
384:7NU4MotMJb5tbqMHLuFg6ihJSxUCR1rgCPKabK2t0X5P7DZ+LMJWEZWfnYPLJPeX:7NKotMJ2MHEFRJ+pKj

Entry address:
0x587E

Entry point:
FF, 25, 00, 20, 40, 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, 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, 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, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
16 KB (16,384 bytes)

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

TCP (HTTP):
Connects to cms.dmccint.com  (23.67.242.80:80)

 
http://cms.dmccint.com/DynamicOffer/56260628/56281751/?mainofferId=56257194&CurrentStep=2&TotalSteps=4&DownloadBrowser=IE&CType=-1&UserMode=-1&DMVersion=1.3.6.62.56280617.01&Language=US-EN

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