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maintainer.exe

SuperInstall

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by SuperInstall has been detected as adware by 26 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “MaintainerSvc4.00.5030318”. 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:
SuperInstall  (signed and verified)

Version:
1.0.5444.38658

MD5:
ea8a2b55f00ecc87da3874fa08517940

SHA-1:
5ee09354440872a1b9284a8b97b21ce9711daaa0

SHA-256:
290a706c196760097341c2b1b18f4a8db8b4b84b49f61a572a91c62f576d8e51

Scanner detections:
26 / 68

Status:
Adware

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

Analysis date:
4/25/2024 8:31:20 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.SwiftBrowse.1
799

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.11.28

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.189.70

avast!
Win32:Adware-BYZ [PUP]
2014.9-141128

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141128

Bitdefender
Gen:Variant.Adware.SwiftBrowse.1
1.0.20.1660

Bkav FE
W32.AppEnable.Maintainer.Adware
1.3.0.6267

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

Comodo Security
Application.Win32.BrowseFox.B
20215

Dr.Web
Trojan.BPlug.281
9.0.1.0332

Emsisoft Anti-Malware
Gen:Variant.Adware.SwiftBrowse
8.14.11.28.03

ESET NOD32
Win32/BrowseFox
8.10794

F-Prot
W32/A-de841313
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.SwiftBrowse.1
11.2014-28-11_6

G Data
Gen:Variant.Adware.SwiftBrowse
14.11.24

K7 AntiVirus
Trojan
13.186.14161

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.2879

MicroWorld eScan
Gen:Variant.Adware.SwiftBrowse.1
15.0.0.996

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.63726

nProtect
Trojan-Clicker/W32.Yotoon.123632
14.11.27.01

Panda Antivirus
Trj/CI.A
14.11.28.03

Qihoo 360 Security
HEUR/QVM10.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.Service.SuperInstall.K
14.12.1.0

SUPERAntiSpyware
Adware.SwiftBrowse
10211

Vba32 AntiVirus
AdWare.Yotoon
3.12.26.3

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1995

File size:
120.7 KB (123,632 bytes)

Product version:
1.0.5444.38658

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\e25f457c-9287-4f2d-b5a8-8cd714c55009\maintainer.exe

Digital Signature
Signed by:
SuperInstall

Authority:
VeriSign, Inc.

Valid from:
11/5/2014 1:00:00 AM

Valid to:
11/6/2015 12:59:59 AM

Subject:
CN=SuperInstall, O=SuperInstall, 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:
1E60E6DE6DF91B338948250B9A390837

File PE Metadata
Compilation timestamp:
11/28/2014 6:28:43 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
1536:D3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+m0bcQ/Wm1sWjcddPQI0ypxCO8Y:zK35/9oxfTk+vvn6dPQI0ypxCOiXbZvg

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:
MaintainerSvc4.00.5030318

Type:
Win32OwnProcess

Depends on:
RPCSS


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