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acoolersvr.exe

Sub Shop

yearsoft

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application acoolersvr.exe by yearsoft has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a windows Service named “SubShop”.
Publisher:
yearsoft  (signed and verified)

Product:
Sub Shop

Version:
2.1.0.1

MD5:
73ec09db100e1ea8f2512d4608ecdef4

SHA-1:
0cc31bb1348034fbaa486e270951f90e012dec02

SHA-256:
1934a1490c4ea1a9b7aa26688e4fe00cc1f70f5935fc32eb9f59cedcc5f65aa9

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:
4/24/2024 5:58:00 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.1.17.5

File size:
16 KB (16,416 bytes)

Product version:
2.1.0.1

Copyright:
yearsoft

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
yearsoft

Authority:
Thawte, Inc.

Valid from:
6/21/2013 9:00:00 AM

Valid to:
6/22/2014 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:
1D640099747B7B0113E4E8A226D9C798

File PE Metadata
Compilation timestamp:
6/21/2013 4:14:23 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
10.0

Entry address:
0x1A81

Entry point:
E8, 83, 04, 00, 00, E9, B3, FD, FF, FF, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 40, 31, 40, 00, 89, 0D, 3C, 31, 40, 00, 89, 15, 38, 31, 40, 00, 89, 1D, 34, 31, 40, 00, 89, 35, 30, 31, 40, 00, 89, 3D, 2C, 31, 40, 00, 66, 8C, 15, 58, 31, 40, 00, 66, 8C, 0D, 4C, 31, 40, 00, 66, 8C, 1D, 28, 31, 40, 00, 66, 8C, 05, 24, 31, 40, 00, 66, 8C, 25, 20, 31, 40, 00, 66, 8C, 2D, 1C, 31, 40, 00, 9C, 8F, 05, 50, 31, 40, 00, 8B, 45, 00, A3, 44, 31, 40, 00, 8B, 45, 04, A3, 48, 31, 40, 00, 8D, 45, 08, A3, 54, 31, 40...
 
[+]

Entropy:
6.4546

Code size:
4 KB (4,096 bytes)

Service
Display name:
SubShop

Service name:
ACoolerSvr

Type:
Win32OwnProcess, InteractiveProcess


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