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utiltanzuki.exe

tanzuki

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application utiltanzuki.exe by tanzuki has been detected as adware by 3 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “Update tanzuki”. 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:
tanzuki  (signed and verified)

Version:
1.0.5058.24939

MD5:
b40197c20022382fb29f53336b48f38b

SHA-1:
5b63119c625d20160e13f2890bc64d77491ed84b

SHA-256:
e916228d95eaf39a149bf38fbb557cf7be2d5665493a6fa76cf2b8cacfc9b857

Scanner detections:
3 / 68

Status:
Adware

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

Analysis date:
4/26/2024 8:31:49 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Plugin.100
9.0.1.0359

ESET NOD32
Win32/BrowseFox (variant)
7.9091

Reason Heuristics
PUP.Service.tanzuki.L
14.3.1.18

File size:
64.8 KB (66,328 bytes)

Product version:
1.0.5058.24939

Original file name:
tanzuki.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\tanzuki\bin\utiltanzuki.exe

Digital Signature
Signed by:
tanzuki

Authority:
VeriSign, Inc.

Valid from:
8/21/2013 2:00:00 AM

Valid to:
8/21/2015 1:59:59 AM

Subject:
CN=tanzuki, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=tanzuki, 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:
5094CECD4B5D21903C384E60AC45C6C4

File PE Metadata
Compilation timestamp:
11/6/2013 2:51:31 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
1536:eqhVXmV5qbCfWpZ+gUv7a5DMVGRMFzXjojZrKikbb6AQo:eq/2/qUWKR4RMFzTgZrKiibUo

Entry address:
0xFF8E

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, 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, 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...
 
[+]

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

Code size:
56 KB (57,344 bytes)

Service
Display name:
Update tanzuki

Type:
Win32OwnProcess


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