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utilscantack.exe

Scan Tack

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utilscantack.exe by Scan Tack has been detected as adware by 14 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “Util ScanTack”. 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.
Publisher:
Scan Tack  (signed and verified)

Version:
1.0.5406.39674

MD5:
9ef445ed84cf0ea7074b4b2c40e15b7c

SHA-1:
54cc4c44da94ec00070b6d19b9e6079c71ba6463

Scanner detections:
14 / 68

Status:
Adware

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

Analysis date:
4/25/2024 6:26:13 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.Y
837

avast!
Win32:BrowseFox-J [PUP]
2014.9-141021

AVG
Generic
2015.0.3315

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141021

Bitdefender
Adware.SwiftBrowse.Y
1.0.20.1470

Emsisoft Anti-Malware
Adware.SwiftBrowse.Y
8.14.10.21.06

ESET NOD32
MSIL/BrowseFox (variant)
8.10594

F-Secure
Adware.SwiftBrowse.Y
11.2014-21-10_3

G Data
Adware.SwiftBrowse
14.10.24

Malwarebytes
PUP.Optional.ScanTack.A
v2014.10.21.06

MicroWorld eScan
Adware.SwiftBrowse.Y
15.0.0.882

nProtect
Adware.SwiftBrowse.Y
14.10.19.01

Reason Heuristics
PUP.Service.ScanTack.M
14.10.21.6

VIPRE Antivirus
Yontoo
34108

File size:
511.8 KB (524,064 bytes)

Product version:
1.0.5406.39674

Original file name:
ScanTack.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Program Files\scantack\bin\utilscantack.exe

Digital Signature
Signed by:
Scan Tack

Authority:
VeriSign, Inc.

Valid from:
1/22/2014 1:00:00 AM

Valid to:
1/23/2015 12:59:59 AM

Subject:
CN=Scan Tack, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Scan Tack, L=San Diego, 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:
44D91A3142283CE62B23F23C84838B0D

File PE Metadata
Compilation timestamp:
10/21/2014 8:02:35 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:wfRPAXH+fngCSUla2NhsD07M27qYPQSWWkwuL1J10:w5IXwgGPGMQSWg41n

Entry address:
0x7FA32

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 02, 00, 00, 00, 5B, 00, 00, 00, 74, FA, 07, 00, 74, DC, 07, 00, 52, 53, 44, 53, 4C, 85, 49, AC, 94, D0, 1D, 42, A6, CC, 0F, 4A, 36, 19, 1C, 73, 01, 00, 00, 00, 44, 3A, 5C, 55, 74, 69, 6C, 69, 74, 69, 65, 73, 5C, 35, 33, 73, 34, 35, 62, 68, 6A, 2E, 75, 69, 31, 5C, 44, 65, 73, 6B, 74, 6F, 70, 5C, 44, 65, 73, 6B...
 
[+]

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
503 KB (515,072 bytes)

Service
Display name:
Util ScanTack

Type:
Win32OwnProcess


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