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tanzuki.GCUpdate.dll

tanzuki

This is the Google Chrome extension manager/updater for the Yontoo tanzuki branded web browser plugin which injects banners, text-link and popup ads in the Chorme browser. The module tanzuki.GCUpdate.dll by tanzuki has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
tanzuki  (signed and verified)

Version:
1.0.5151.29445

MD5:
2b8fec40a286761b4408d9e0c04bbbea

SHA-1:
3d20ee3f0d436f4e746227f41ec5a3b42d509919

SHA-256:
83fad433c9cebe1a2dbc92fd2086c30afb1a43fbb8327668ff3025004ed8d407

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Part of the Yontoo distributed ad-supported web browser extension for Chrome.

Analysis date:
4/25/2024 6:35:56 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo.tanzuki (M)
15.10.21.18

File size:
441.3 KB (451,864 bytes)

Product version:
1.0.5151.29445

Original file name:
tanzuki.GCUpdate.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\tanzuki\bin\plugins\tanzuki.gcupdate.dll

Digital Signature
Signed by:
tanzuki

Authority:
VeriSign, Inc.

Valid from:
8/21/2013 3:00:00 AM

Valid to:
8/21/2015 2:59:59 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:
2/7/2014 7:21:42 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
6144:zdFrB5xQNL3MRs5jTw9iF4ze8Zd5ENmy2IPqq/MXAChNNgI1SaDEtusCu9zxmOj8:J1xQNAy5MzereQCFftW94OjYXnnDRr

Entry address:
0x6E242

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...
 
[+]

Entropy:
7.6946

Code size:
433 KB (443,392 bytes)

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