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realtek-high-definition-audio-driver.exe

Internet

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application realtek-high-definition-audio-driver.exe, “Internet Setup ” by UpdateStar GmbH has been detected as a potentially unwanted program by 7 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions.
Publisher:
Program   (signed by UpdateStar GmbH)

Product:
Internet

Description:
Internet Setup

Version:
3.5.5.0

MD5:
f3427b6518fb2f2a916914ae257c7d4f

SHA-1:
fc860b42ca0f57d8e0eedfca2bb958e4bae92f18

SHA-256:
6361d149b8ac72fa71786d9de46deef6c2bdb415336c5e3d8aeac6816a2f3ad3

Scanner detections:
7 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
12/23/2024 11:34:44 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2016.0.3090

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.InstallCore.224
9.0.1.05190

ESET NOD32
Win32/InstallCore.ZM potentially unwanted application
7.0.302.0

K7 AntiVirus
Unwanted-Program
13.204.16119

Reason Heuristics
PUP.Installer.UpdateStarGmbH
15.6.3.7

VIPRE Antivirus
Threat.4150696
40786

File size:
743.1 KB (760,944 bytes)

Product version:
1.4.8

Copyright:
Installer

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\realtek-high-definition-audio-driver.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
GlobalSign nv-sa

Valid from:
2/3/2015 12:10:42 PM

Valid to:
2/4/2016 12:10:42 PM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, L=Berlin, S=Berlin, C=DE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112124922D3C2654755777EEC500C21F7151

File PE Metadata
Compilation timestamp:
6/19/1992 11:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:Yb1G7E91pRSwWubJRcBFqOsx9AkVMRNNNWhPMR88wSrkp/4Q0Ybd5tLD+7oekuzP:Yb16E91S7uETsxVyNkhPH1Z0S+RfL6AH

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.8833

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

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

TCP (HTTP):
Connects to www.updatestar.com  (91.250.81.8:80)

TCP (HTTP):
Connects to ec2-54-243-153-163.compute-1.amazonaws.com  (54.243.153.163:80)

TCP (HTTP):
Connects to ec2-54-186-29-120.us-west-2.compute.amazonaws.com  (54.186.29.120:80)

TCP (HTTP):
Connects to ec2-54-186-117-168.us-west-2.compute.amazonaws.com  (54.186.117.168:80)

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