home

maintainer.exe

Xaven

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by Xaven 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 “MaintainerSvc2.51.5833130”.
Publisher:
Xaven  (signed and verified)

Version:
1.0.5740.29769

MD5:
7fff910f1946258a743ded8b6ff6dc7a

SHA-1:
31064df4b604dca6e0e436e559ed848e2c17217e

SHA-256:
b0c0cfba7d06410ae84dd51381b87088bd242e9d3a56200856801148f58bb1dc

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:
5/4/2024 9:49:04 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.1.27.0

File size:
125.2 KB (128,232 bytes)

Product version:
1.0.5740.29769

File type:
Executable application (Win32 EXE)

Common path:
C:\ProgramData\23fe76da-a61a-46be-808e-5da63fa66de9\maintainer.exe

Digital Signature
Signed by:
Xaven

Authority:
VeriSign, Inc.

Valid from:
9/30/2014 3:00:00 AM

Valid to:
10/31/2015 2:59:59 AM

Subject:
CN=Xaven, O=Xaven, 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:
1AE7147D727CFEEA31EDC65D090B634B

File PE Metadata
Compilation timestamp:
9/20/2015 2:32:21 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x9872

Entry point:
E8, 75, 62, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, C2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 59, 50, 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...
 
[+]

Entropy:
6.2060

Code size:
72.5 KB (74,240 bytes)

Service
Display name:
MaintainerSvc2.51.5833130

Type:
Win32OwnProcess

Depends on:
RPCSS


Remove maintainer.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.