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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 6 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 113.171.224.169 and multiple other hosts.
Publisher:
Visicom Media Inc.  (signed and verified)

Product:
MyStart Toolbar

Description:
MyStart Toolbar Installer

Version:
5.4

MD5:
e0b9a434f4d2b3bb7aeaed477bc08f2d

SHA-1:
9ca5ce6e1cb8a3edae35c637ef1556a3524cff26

SHA-256:
2a14d546977490d3988d32850585b10f420c8dc9d087fcff9aa02fe0ee6a4fe6

Scanner detections:
6 / 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:
11/15/2024 3:49:24 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Shopper.489
9.0.1.0224

ESET NOD32
Win32/Toolbar.Visicom (variant)
8.10228

Malwarebytes
PUP.Optional.MyStartTB.A
v2014.08.12.05

Reason Heuristics
PUP.MyStartToolbarInstaller.VisicomMedia.O
14.10.1.11

Trend Micro House Call
Suspicious_GEN.F47V0731
7.2.224

VIPRE Antivirus
Trojan.Win32.Generic
32066

File size:
5 MB (5,275,776 bytes)

Product version:
5.4.1.6

Copyright:
© Visicom Media Inc.

Trademarks:
Visicom Media Inc., All Rights Reserved

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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:sUKon7rHFtpa4msOo/IsLg3hAdoGVYBaxoCAICG7DNKPSQKEpyH8cu7:sUKgHFW4RLLg3Bi86oLICIcSQKEwHzu7

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 mystarttb_klcp.exe has been seen being distributed by the following 6 URLs.

http://113.171.224.169/.../mystartTb_klcp.exe

http://113.171.224.244/.../mystartTb_klcp.exe

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

http://91.74.184.67/.../mystartTb_klcp.exe

http://91.74.184.36/.../mystartTb_klcp.exe

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

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