tyxbsyu.exe

Selecao Technologies (Bright Circle Investments Ltd)

This adware is a web browser extension that will inject advertising in the browser in the form of unwanted banners and text-links which may link to malware sites and install unwanted software. The application tyxbsyu.exe, “HD-Quality-3.1V25.01 exe” by Selecao Technologies (Bright Circle Investments) has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a scheduled task under the Windows Task Scheduler named TYXBSYU triggered to execute each time a user logs in. It is part of the Brightcircle group of web-extensions that inject advertisements in the browser.
Publisher:
HD-Quality-3.1V25.01  (signed by Selecao Technologies (Bright Circle Investments Ltd))

Product:
HD-Quality-3.1V25.01

Description:
HD-Quality-3.1V25.01 exe

Version:
1000.1000.1000.1000

MD5:
0c071c15bb054d8fe9feace5c1733eaa

SHA-1:
c8240ae10a55ba427e4e21ab6c54f1b7f63d6c34

SHA-256:
dd2ed52b0da87ff23f8520454d7dbb3e777abcc5332d71eeea039fe366c447ca

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.

Analysis date:
11/23/2024 8:20:05 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.BrightCircle (M)
17.3.8.7

File size:
1.8 MB (1,860,584 bytes)

Product version:
1000.1000.1000.1000

Copyright:
Copyright 2011

Original file name:
HD-Quality-3.1V25.01.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\roaming\tyxbsyu.exe

Digital Signature
Authority:
COMODO CA Limited

Valid from:
12/15/2014 7:00:00 PM

Valid to:
12/16/2015 6:59:59 PM

Subject:
CN=Selecao Technologies (Bright Circle Investments Ltd), O=Selecao Technologies (Bright Circle Investments Ltd), STREET=Athinodorou 3, STREET=Dasoupoli Strovolos, L=Nicosia, S=Nicosia, PostalCode=2025, C=CY

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
3F2791037D410A199539AA4A99F7DEB3

File PE Metadata
Compilation timestamp:
1/25/2015 12:05:14 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0xD5844

Entry point:
E8, 66, E4, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 56, 8B, 75, 08, 85, F6, 78, 09, E8, 99, E5, 00, 00, 3B, 30, 7C, 07, E8, 90, E5, 00, 00, 8B, 30, E8, 83, E5, 00, 00, 8B, 04, B0, 5E, 5D, C3, 55, 8B, EC, 56, E8, C0, 43, 00, 00, 8B, F0, 85, F6, 75, 07, B8, E0, 9D, 53, 00, EB, 26, 53, 57, 33, FF, BB, 86, 00, 00, 00, 39, 7E, 24, 75, 1B, 6A, 01, 53, E8, 69, 2D, 00, 00, 59, 59, 89, 46, 24, 85, C0, 75, 0A, B8, E0, 9D, 53, 00, 5F, 5B, 5E, 5D, C3, FF, 75, 08, 8B, 76, 24, E8, 90, FF, FF, FF, 50, 53, 56, E8, 3B, D2...
 
[+]

Entropy:
6.8972

Code size:
1012 KB (1,036,288 bytes)

Scheduled Task
Task name:
TYXBSYU

Trigger:
Logon (Runs on logon)


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