» maintainer.exe
Overview
Analysis
File Details
Behaviors (1)

maintainer.exe

SurfEnhance

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by SurfEnhance has been detected as adware by 33 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “MaintainerSvc4.07.4104264”. 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.

File name:

maintainer.exe

Publisher:

SurfEnhance (signed and verified)

Version:

1.0.5440.8357

MD5:

4db03db5b69426b6f5e0a3502ad8cf77

SHA-1:

59ca7d99d7df60fc569d014c0735f1a70b467cd4

SHA-256:

8b01b9723da60be02249b4aaa783a948bfc53393609e2ceb736d42f84094be4f

Scanner detections:

33 / 68

Status:

Adware

Explanation:

Injects advertising in the web browser in various formats.

Analysis date:

4/20/2024 8:21:48 AM UTC (today)

Scan engine

Detection

Engine version

Lavasoft Ad-Aware

Gen:Variant.Adware.SwiftBrowse.1

5828757

AegisLab AV Signature

Troj.W32.Gen

2.1.4+

AhnLab V3 Security

Adware/Win32.SwiftBrowse

2014.10.30

Avira AntiVirus

Adware/Kranet.123304.1

7.11.182.78

avast!

Win32:Adware-BYZ [PUP]

141119-1

AVG

Megabrowse

2015.0.3282

Baidu Antivirus

Adware.Win32.BrowseFox

4.0.3.141123

Bitdefender

Adware.SwiftBrowse.CF

1.0.20.1635

Clam AntiVirus

Win.Adware.Agent-22685

0.98/19576

Comodo Security

Application.Win32.BrowseFox.B

20172

Dr.Web

Trojan.BPlug.281

9.0.1.05190

Emsisoft Anti-Malware

Gen:Variant.Adware.SwiftBrowse

9.0.0.4570

ESET NOD32

Win32/BrowseFox.V potentially unwanted application

7.0.302.0

Fortinet FortiGate

Adware/Kranet

11/23/2014

F-Prot

W32/A-1c37adca

v6.4.7.1.166

F-Secure

Adware.SwiftBrowse.CF

11.2014-23-11_1

G Data

Adware.SwiftBrowse.CF

14.11.24

IKARUS anti.virus

not-a-virus:AdWare.Kranet

t3scan.1.8.3.0

K7 AntiVirus

Trojan

13.185.13980

Kaspersky

not-a-virus:AdWare.Win32.Yotoon

15.0.0.543

McAfee

Artemis!E3F2E87BE816

5600.6938

MicroWorld eScan

Adware.SwiftBrowse.CF

15.0.0.981

NANO AntiVirus

Riskware.Win32.Kranet.dgiwfc

0.28.6.62995

nProtect

Adware.SwiftBrowse.CF

14.10.30.01

Panda Antivirus

Trj/CI.A

14.11.23.08

Qihoo 360 Security

Win32/Virus.Adware.708

1.0.0.1015

Quick Heal

AdWare.Yotoon.r5 (Not a Virus)

11.14.14.00

Reason Heuristics

PUP.Service.SurfEnhance.K

14.12.1.0

Sophos

Browse Fox

4.98

Trend Micro House Call

TROJ_GEN.R0C1H07K314

7.2.327

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 (123,680 bytes)

Product version:

1.0.5440.8357

File type:

Executable application (Win32 EXE)

Language:

English (United States)

Common path:

C:\ProgramData\398c0b96-ebd3-4f67-a5c7-1899a15c12be\maintainer.exe

Digital Signature

Signed by:

SurfEnhance

Authority:

VeriSign, Inc.

Valid from:

9/27/2013 3:00:00 AM

Valid to:

9/28/2015 2:59:59 AM

Subject:

CN=SurfEnhance, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=SurfEnhance, 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:

052C87532FBD523C55FB8703A352F6AB

File PE Metadata

Compilation timestamp:

11/23/2014 3:38:42 PM

OS version:

5.1

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

11.0

CTPH (ssdeep):

1536:o3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+mabcQ/Wm1sWjcdBPQI0ypxCO8x:YK35/9oxfTk+Fvn6BPQI0ypxCOTXbZvc

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:

MaintainerSvc4.07.4104264

Type:

Win32OwnProcess

Depends on:

RPCSS

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