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usdrivers.exe

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application usdrivers.exe by UpdateStar GmbH 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 installCore installer. The file has been seen being downloaded from client.updatestar.com.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
b6e87b2a2cdac56628ab61ee6ce4ee47

SHA-1:
76dcf7067e9fab69a960d95d72ab9991f8e14b30

SHA-256:
29045c161a4876063ffbd03b8400db86d6a54d4bca94c349b29780be76109f82

Scanner detections:
1 / 68

Status:
Potentially unwanted

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 also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/23/2024 2:13:28 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.UpdateStarGmbH.J
14.3.29.4

File size:
128.4 KB (131,496 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Nullsoft Install System)

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

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
The USERTRUST Network

Valid from:
10/20/2010 2:00:00 AM

Valid to:
10/21/2011 1:59:59 AM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, STREET=Am Borsigturm 48, L=Berlin, S=Berlin, PostalCode=13507, C=DE

Issuer:
CN=UTN-USERFirst-Object, OU=http://www.usertrust.com, O=The USERTRUST Network, L=Salt Lake City, S=UT, C=US

Serial number:
2ACDB74CEA0A72647526F5A80FA98905

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:vQIURTXJ345gzGai6peC1vmbwVZQaQRZ5U9ttC0k:vstr6aike0/SZ5U9to0k

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file usdrivers.exe has been seen being distributed by the following URL.

http://client.updatestar.com/files/.../usdrivers.exe

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