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maintainer.exe

FindRight

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by FindRight 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 separate (within the context of its own process) windows Service named “MaintainerSvc3.75.5000057”.
Publisher:
FindRight  (signed and verified)

Version:
1.0.5471.36927

MD5:
367692ddab2b20122663cd658e92f3dc

SHA-1:
998cdbbb91a0c01c1b26026fd0626eb6169b4ed2

SHA-256:
763120946ad6fae0fa1fc4f3a81524896346109819ea12fe5890b8b5a1552d49

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:
11/27/2024 2:08:33 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.12.9

File size:
120.7 KB (123,632 bytes)

Product version:
1.0.5471.36927

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\75acca2f-18f9-4ee2-81a2-0d40cd9a3cbd\maintainer.exe

Digital Signature
Signed by:
FindRight

Authority:
VeriSign, Inc.

Valid from:
11/13/2014 1:00:00 AM

Valid to:
12/14/2015 12:59:59 AM

Subject:
CN=FindRight, O=FindRight, 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:
15DDD28685B56AF9DAC61ECC7CB24C06

File PE Metadata
Compilation timestamp:
12/25/2014 5:31:03 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x8A72

Entry point:
E8, 95, 57, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, B2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 79, 45, 00, 00, 59, 83, A5, E0, FC, FF, FF, 00, 6A, 4C, 8D, 85, E4, FC, FF, FF, 6A, 00, 50, E8, 7A, F3, FF, FF, 8D, 85, E0, FC, FF, FF, 89, 85, D8, FC, FF, FF, 8D, 85, 30, FD, FF, FF, 83, C4, 0C, 89, 85, DC, FC, FF, FF, 89, 85, E0, FD, FF, FF, 89, 8D, DC, FD, FF, FF, 89, 95, D8, FD, FF, FF, 89, 9D, D4, FD, FF, FF, 89, B5, D0, FD, FF, FF, 89, BD, CC...
 
[+]

Code size:
68.5 KB (70,144 bytes)

Service
Display name:
MaintainerSvc3.75.5000057

Type:
Win32OwnProcess

Depends on:
RPCSS


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