ustechsupport-pc-optimizer.exe

USTechSupport PC Optimizer.exe Stub Installer

US Tech Support LLC

The application ustechsupport-pc-optimizer.exe, “USTechSupport PC Optimizer.exe” by US Tech Support has been detected as a potentially unwanted program by 6 anti-malware scanners. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. The file has been seen being downloaded from software.ustechsupport.com.
Publisher:
US Tech Support LLC  (signed and verified)

Product:
USTechSupport PC Optimizer.exe Stub Installer

Description:
USTechSupport PC Optimizer.exe

Version:
1.0.9.4878

MD5:
9bb6731aa73c572cdf42237aac9ac07a

SHA-1:
28d2b2a05b07618fc0015c12a7202b2b16084819

SHA-256:
52a7fe6c9df3db69b513f897b23c2a888fc7dec4f5500a3ef4b8b6238dd1d626

Scanner detections:
6 / 68

Status:
Potentially unwanted

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/25/2024 12:03:22 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
TR/Dropper.Gen
7.11.30.172

Dr.Web
riskware program Program.Unwanted.172
9.0.1.024

F-Secure
Gen:Adware.BrowseFox.1
11.2016-24-01_1

Qihoo 360 Security
HEUR/QVM41.1.Malware.Gen
1.0.0.1077

Reason Heuristics
Win32.Generic
16.1.24.8

Zillya! Antivirus
Adware.BrowseFox.Win32.127199
2.0.0.2548

File size:
1.7 MB (1,754,688 bytes)

Product version:
1.0.9.4878

Copyright:
© 2014, US Tech Support LLC

Original file name:
USTechSupport PC Optimizer.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\ustechsupport-pc-optimizer.exe

Digital Signature
Authority:
VeriSign, Inc.

Valid from:
7/28/2014 7:00:00 PM

Valid to:
8/27/2016 6:59:59 PM

Subject:
CN=US Tech Support LLC, O=US Tech Support LLC, L=Santa Monica, S=California, C=US

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:
6C66340872D59F21271BCFD88768E727

File PE Metadata
Compilation timestamp:
12/11/2014 2:36:54 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:iZnAeFkqumJe/b2jufCPNsmNj50dC+VV2jlsJSHQltIpEUApgc:iZhpE/b2UCuIF+VVClsOZ6gc

Entry address:
0x5B35D

Entry point:
E8, 10, BA, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 53, 57, 33, DB, 6A, 07, 33, C0, 59, 8D, 7D, E4, 89, 5D, E0, F3, AB, 39, 5D, 14, 75, 18, E8, FA, 11, 00, 00, C7, 00, 16, 00, 00, 00, E8, 0D, 6F, 00, 00, 83, C8, FF, E9, 90, 00, 00, 00, 8B, 7D, 10, 56, 8B, 75, 0C, 3B, FB, 74, 19, 3B, F3, 75, 15, E8, D3, 11, 00, 00, C7, 00, 16, 00, 00, 00, E8, E6, 6E, 00, 00, 83, C8, FF, EB, 6B, B8, FF, FF, FF, 7F, 89, 45, E4, 3B, F8, 77, 03, 89, 7D, E4, FF, 75, 1C, 8D, 45, E0, FF, 75, 18, C7, 45, EC, 42...
 
[+]

Entropy:
6.8059

Code size:
921 KB (943,104 bytes)

The file ustechsupport-pc-optimizer.exe has been seen being distributed by the following URL.

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