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maintainer.exe

waleisa

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by waleisa has been detected as adware by 24 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “MaintainerSvc1.11.3209076”. 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:
waleisa  (signed and verified)

Version:
1.0.5416.28278

MD5:
96d65a1911ba86bd35358e6ebaedc71c

SHA-1:
6dff3fdc3c8dbcd3b257b89e8bf76490be9da3be

SHA-256:
92c6d36330704dd36473b144b7471632555ace74645edfd4781f8fce803932cf

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
4/25/2024 8:45:25 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CF
827

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.10.30

Avira AntiVirus
Adware/Kranet.123304.1
7.11.182.78

avast!
Win32:Adware-BYZ [PUP]
141025-0

AVG
Megabrowse
2015.0.3305

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141031

Bitdefender
Adware.SwiftBrowse.CF
1.0.20.1520

Clam AntiVirus
Win.Adware.Agent-22685
0.98/21411

Dr.Web
Trojan.BPlug.281
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Adware.SwiftBrowse
14.10.31

ESET NOD32
Win32/BrowseFox
8.10643

Fortinet FortiGate
Adware/Kranet
10/31/2014

F-Secure
Adware.SwiftBrowse.CF
11.2014-31-10_6

G Data
Adware.SwiftBrowse.CF
14.10.24

Kaspersky
not-a-virus:AdWare.Win32.Kranet
14.0.0.3018

McAfee
Artemis!E3F2E87BE816
5600.6961

MicroWorld eScan
Adware.SwiftBrowse.CF
15.0.0.912

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.62995

nProtect
Adware.SwiftBrowse.CF
14.10.30.01

Reason Heuristics
PUP.Service.waleisa
15.1.12.11

Sophos
Browse Fox
4.98

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Yontoo
34362

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1972

File size:
120.8 KB (123,672 bytes)

Product version:
1.0.5416.28278

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\a68d9eea-b970-45e3-ba05-b4a5e2e396bc\maintainer.exe

Digital Signature
Signed by:
waleisa

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 5:30:00 AM

Valid to:
4/23/2015 5:29:59 AM

Subject:
CN=waleisa, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=waleisa, L=Santa Monica, 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:
2C339888F9FD7944F1C60CB80A80AF6D

File PE Metadata
Compilation timestamp:
10/31/2014 4:12:43 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
1536:d3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+mYbcQ/Wm1sWjcdGPQI0ypxCO8X:RK35/9oxfTk+nvn6GPQI0ypxCOx3bZvw

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:
6.1807

Code size:
68.5 KB (70,144 bytes)

Service
Display name:
MaintainerSvc1.11.3209076

Type:
Win32OwnProcess

Depends on:
RPCSS


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