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mystarttb_klcp.exe

MyStart Toolbar

Visicom Media Inc.

This is part of the Visicom VMN web browser toolbar and extension that will modify the browser's default search provider, DNS, and home page functions. The application mystarttb_klcp.exe, “MyStart Toolbar Installer” by Visicom Media has been detected as a potentially unwanted program by 7 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from 113.171.224.209 and multiple other hosts.
Publisher:
Visicom Media Inc.  (signed and verified)

Product:
MyStart Toolbar

Description:
MyStart Toolbar Installer

Version:
5.4

MD5:
6fa5b516c3cb98a1cdcbe0ba1556967d

SHA-1:
0ccd13646c19b3c7b9e8c335e1386ffd3596dc94

SHA-256:
61ce417d71005b8de0952f629d6bb7e4fe2cd5f02e279a15fb338e16ea37daab

Scanner detections:
7 / 68

Status:
Potentially unwanted

Explanation:
The setup program may install a variant of the Visicom Toolbar, a web browser extension that may modify the browser's home and search pages.

Analysis date:
12/26/2024 1:56:07 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Toolbar.Visicom
7.1.1

Dr.Web
Adware.Toolbar.272
9.0.1.0351

ESET NOD32
Win32/Toolbar.Visicom (variant)
8.10888

Fortinet FortiGate
Riskware/Visicom
12/17/2014

Malwarebytes
PUP.Optional.MyStartTB.A
v2014.12.17.09

Reason Heuristics
PUP.MyStartToolbarInstaller.VisicomMedia.O
14.12.17.9

Trend Micro House Call
Suspici.8C7FCC2E
7.2.351

File size:
4.8 MB (5,049,176 bytes)

Product version:
5.4.3.1

Copyright:
© Visicom Media Inc. (License)

Trademarks:
Visicom Media Inc., All Rights Reserved

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\mystarttb_klcp.exe

Digital Signature
Signed by:
Visicom Media Inc.

Authority:
Thawte, Inc.

Valid from:
5/8/2014 2:00:00 AM

Valid to:
6/21/2016 1:59:59 AM

Subject:
CN=Visicom Media Inc., OU=SECURE APPLICATION DEVELOPMENT, O=Visicom Media Inc., L=Brossard, S=Quebec, C=CA

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
266F9E30991B0C3EFC03DA9B8CDDB68D

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):
98304:nop/c0CDxzhSlduNMO3CK2pChS8YlMsCWla7St/dYL8xhgy7B:noFclSlwqOSK2UZrsdYsTB

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...
 
[+]

Entropy:
7.9992

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file mystarttb_klcp.exe has been seen being distributed by the following 2 URLs.

http://113.171.224.209/.../mystartTb_klcp.exe

http://mystart.toolbarstart.com/download/.../mystartTb_klcp.exe

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