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zouyeah.exe

Tab Station

yearsoft

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application zouyeah.exe, “Tab Station Apply” by yearsoft has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
tabstation  (signed by yearsoft)

Product:
Tab Station

Description:
Tab Station Apply

Version:
1.1.1.9

MD5:
d9e05e53563626a263e17f8421ee94d8

SHA-1:
8c6fbbdf565bf16e388905cf3572792e893be77b

SHA-256:
a3e47d61a134f37c101cf037945655690695dde0dd681a8d747fca635aae15d7

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
11/19/2025 7:52:34 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
16.10.22.11

File size:
1.7 MB (1,819,704 bytes)

Product version:
1.1.1.9

Copyright:
tabstation

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\roaming\zouyeah\zouyeah.exe

Digital Signature
Signed by:
yearsoft

Authority:
Thawte, Inc.

Valid from:
7/17/2013 9:00:00 AM

Valid to:
7/18/2014 8:59:59 AM

Subject:
CN=yearsoft, OU=IT Team, O=yearsoft, L=Ansan-si, S=Gyeonggi-do, C=KR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
028FB214E3C57F518427378946E58BA7

File PE Metadata
Compilation timestamp:
7/16/2013 11:03:17 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:or0vaLPCQ9sNIb/kC+odaBH1LQEl1TUaNUslaGyyXWKaWAu3VmqViHzVK8fnja:oTzCokIb/kC+9BHCElR/OslaGyyXV5mw

Entry address:
0x111CC6

Entry point:
E8, 91, B6, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 4D, 10, 85, C9, 74, 1B, 8B, 45, 0C, 0F, B7, D0, 8B, C2, C1, E2, 10, 57, 8B, 7D, 08, 0B, C2, D1, E9, F3, AB, 13, C9, 66, F3, AB, 5F, 8B, 45, 08, 5D, C3, 8B, FF, 55, 8B, EC, 56, 8B, 75, 14, 85, F6, 75, 04, 33, C0, EB, 64, 83, 7D, 08, 00, 75, 13, E8, 4E, 0B, 00, 00, 6A, 16, 5E, 89, 30, E8, DE, 58, 00, 00, 8B, C6, EB, 4B, 83, 7D, 10, 00, 74, 19, 39, 75, 0C, 72, 14, 8D, 04, 36, 50, FF, 75, 10, FF, 75, 08, E8, 80, 29, 00, 00, 83, C4, 0C, EB, C4, FF...
 
[+]

Entropy:
6.4300

Code size:
1.2 MB (1,266,176 bytes)

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