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maintainer.exe

BuzzSearch

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by BuzzSearch 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 “MaintainerSvc1.80.3844085”.
Publisher:
BuzzSearch  (signed and verified)

Version:
1.0.5422.10163

MD5:
4de366ac7a3e2aa94a545410c207b91b

SHA-1:
cc101a85bf62ba60f882539b594526c51b5466e0

SHA-256:
035a136921ffb56b2340594cba4021239e1eb66bd76e914e17959633b1e508ef

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 2:53:52 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.14.20

File size:
120.4 KB (123,336 bytes)

Product version:
1.0.5422.10163

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\ce49ecae-5093-4cf0-9fba-68a2fc985aab\maintainer.exe

Digital Signature
Signed by:
BuzzSearch

Authority:
COMODO CA Limited

Valid from:
5/2/2014 7:00:00 PM

Valid to:
5/3/2015 6:59:59 PM

Subject:
CN=BuzzSearch, OU=BuzzSearch, O=BuzzSearch, STREET=10620 Treena Street Suite 230, L=San Diego, S=Ca, PostalCode=92131, C=US

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00DD9FCB2E901E39FD097F0632D190AF7E

File PE Metadata
Compilation timestamp:
11/5/2014 8:38:53 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:
MaintainerSvc1.80.3844085

Type:
Win32OwnProcess

Depends on:
RPCSS


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