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mystarttb_5.5.0.2_samba.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_5.5.0.2_samba.exe, “MyStart Toolbar Installer” by Visicom Media 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 NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from mystart.toolbarstart.com.
Publisher:
Visicom Media Inc.  (signed and verified)

Product:
MyStart Toolbar

Description:
MyStart Toolbar Installer

Version:
5.6

MD5:
66aeacfd689f2f77f7d67852740e94cb

SHA-1:
ee3f77e19bedc44545cc89a508134144be7431f3

SHA-256:
b2ba09884dafface78098c0c5a03296dfa9c98b6f58ddb41667f4dfdc4ee4d3e

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.

Analysis date:
11/15/2024 3:51:57 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Visicom.VisicomM.Installer (M)
16.4.17.0

File size:
4.1 MB (4,279,568 bytes)

Product version:
5.6.0.6

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:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\mystarttb_5.5.0.2_samba.exe

Digital Signature
Signed by:
Visicom Media Inc.

Authority:
Symantec Corporation

Valid from:
2/8/2015 4:00:00 PM

Valid to:
2/8/2017 3:59:59 PM

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

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
0F7022688814C950B353E71B8D1C1D84

File PE Metadata
Compilation timestamp:
7/14/2013 1:09:44 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:AjS6V6b7YC+wXBZ/075ExGIeOuEmJqyqJ7TfU:AjSG6b7YC+wxZ8wCs3tZTfU

Entry address:
0x324D

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 89, 5C, 24, 20, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 08, A3, 98, 3F, 42, 00, E8, 8B, 2D, 00, 00, A3, E4, 3E, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, A0, F4, 41, 00, FF, 15, 64, 71, 40, 00, 68, E4, 91, 40, 00, 68, E0, 36, 42, 00, E8, 35, 2A, 00, 00, FF, 15, B0, 70, 40, 00, BD, 00, 90, 42, 00, 50, 55, E8, 23, 2A...
 
[+]

Entropy:
7.9990

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file mystarttb_5.5.0.2_samba.exe has been seen being distributed by the following URL.

http://mystart.toolbarstart.com/download/.../mystartTb_5.6.0.6_samba.exe

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