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maintainer.exe

EnhanceTronic

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by EnhanceTronic has been detected as adware by 30 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “MaintainerSvc2.04.8161635”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
EnhanceTronic  (signed and verified)

Version:
1.0.5449.40332

MD5:
2e45328a7c6461918fc6f4a4524647d2

SHA-1:
8b7e1d78e9700ef5535fab0144068f479571837b

SHA-256:
75b1c6f47e20a266cfbbf4d65ffbaf51418bab5a62974921d9a2de471373344f

Scanner detections:
30 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/24/2024 11:06:44 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.SwiftBrowse.1
775

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.12.04

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.192.134

avast!
Win32:Adware-BYZ [PUP]
2014.9-141221

AVG
Generic
2015.0.3253

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141221

Bitdefender
Gen:Variant.Adware.SwiftBrowse.1
1.0.20.1775

Clam AntiVirus
Win.Adware.Agent-22685
0.98/21511

Comodo Security
Application.Win32.BrowseFox.B
20275

Dr.Web
Trojan.BPlug.281
9.0.1.0355

ESET NOD32
Win32/BrowseFox
8.10821

Fortinet FortiGate
Adware/Yotoon
12/21/2014

F-Prot
W32/A-de841313
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.SwiftBrowse.1
11.2014-21-12_1

G Data
Gen:Variant.Adware.SwiftBrowse
14.12.24

K7 AntiVirus
Trojan
13.186.14225

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.2760

McAfee
Artemis!2E45328A7C64
5600.6909

MicroWorld eScan
Gen:Variant.Adware.SwiftBrowse.1
15.0.0.1065

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.63850

nProtect
Trojan-Clicker/W32.Yotoon.123640
14.12.03.01

Qihoo 360 Security
Win32/Virus.Adware.708
1.0.0.1015

Quick Heal
AdWare.Yotoon.A5
12.14.14.00

Reason Heuristics
PUP.Service.EnhanceTronic.K
14.12.21.23

Sophos
Generic PUA IL
4.98

SUPERAntiSpyware
Adware.SwiftBrowse
10163

Trend Micro House Call
Suspicious_GEN.F47V1203
7.2.355

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

VIPRE Antivirus
Yontoo
35390

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1998

File size:
120.7 KB (123,640 bytes)

Product version:
1.0.5449.40332

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\eebc23d4-6a04-4541-8ed6-300bce8adb84\maintainer.exe

Digital Signature
Signed by:
EnhanceTronic

Authority:
VeriSign, Inc.

Valid from:
11/4/2014 5:30:00 AM

Valid to:
1/4/2016 5:29:59 AM

Subject:
CN=EnhanceTronic, O=EnhanceTronic, 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:
0A0C295A9825B59657B7B4273D503547

File PE Metadata
Compilation timestamp:
12/3/2014 11:54:31 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:JK35/9oxfTk+5vvn6CPQI0ypxCObXbZvP:JKCLPl7LbLZvP

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...
 
[+]

Entropy:
6.1810

Code size:
68.5 KB (70,144 bytes)

Service
Display name:
MaintainerSvc2.04.8161635

Type:
Win32OwnProcess

Depends on:
RPCSS


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