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maintainer.exe

Browser Gloss

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by Browser Gloss 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 “MaintainerSvc1.92.5302915”. 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:
Browser Gloss  (signed and verified)

Version:
1.0.5692.6335

MD5:
b07a8383c902ee4e685c310b7dfe508b

SHA-1:
1ef1bd444bd0c63ab9dc35ef3a1e7adc2664272f

Scanner detections:
33 / 68

Status:
Adware

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

Analysis date:
4/26/2024 9:42:03 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Mikey.15887
551

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.08.03

Avira AntiVirus
ADWARE/BrowseFox.Gen7
8.3.1.6

Arcabit
Trojan.Adware.Mikey.D3E0F
1.0.0.425

avast!
Win32:BrowseFox-JA [PUP]
2014.9-150803

AVG
AdPlugin
2016.0.3029

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1583

Bitdefender
Gen:Variant.Adware.Mikey.15887
1.0.20.1075

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Agent-41785
0.98/21511

Comodo Security
Application.Win32.BrowseFox.AHJ
22915

Dr.Web
Trojan.Yontoo.1734
9.0.1.0215

Emsisoft Anti-Malware
Gen:Variant.Adware.Mikey.15887
8.15.08.03.06

ESET NOD32
Win32/BrowseFox.BD potentially unwanted
9.12031

F-Prot
W32/S-11fc74d1
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.Mikey
11.2015-03-08_2

G Data
Gen:Variant.Adware.Mikey.15887
15.8.25

herdProtect (fuzzy)
variant of maintainer.bak (Adware)
2015.9.8.1

K7 AntiVirus
Adware
13.207.16756

Malwarebytes
PUP.Optional.BrowseFox
v2015.08.03.06

McAfee
BrowseFox-FXS
5600.6685

MicroWorld eScan
Gen:Variant.Adware.Graftor.163020
16.0.0.645

NANO AntiVirus
Trojan.Win32.Yontoo.dpmcsm
0.30.24.2668

Quick Heal
PUA.Dolphindea.Gen
9.15.14.00

Reason Heuristics
PUP.Yontoo.BrowserGloss (M)
15.8.3.6

Rising Antivirus
PE:AdWare.Win32.BrowseFox.i!1075357760
23.00.65.15801

Sophos
Browse Fox
4.98

SUPERAntiSpyware
PUP.Yontoo/Variant
9714

Trend Micro House Call
TROJ_GEN.R08NC0PE315
7.2.251

Vba32 AntiVirus
AdWare.DealKeeper
3.12.26.4

VIPRE Antivirus
Yontoo
40346

Zillya! Antivirus
Adware.Agent.Win32.52012
2.0.0.2323

File size:
125.2 KB (128,248 bytes)

Product version:
1.0.5692.6335

File type:
Executable application (Win32 EXE)

Common path:
C:\Documents and Settings\{user}\Application data\ecbaef90-5696-41e1-a1c3-3e8112ce2840\maintainer.exe

Digital Signature
Signed by:
Browser Gloss

Authority:
VeriSign, Inc.

Valid from:
10/6/2014 5:00:00 AM

Valid to:
10/7/2015 4:59:59 AM

Subject:
CN=Browser Gloss, O=Browser Gloss, 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:
74A87FAD5188A14C25A1035616F453E6

File PE Metadata
Compilation timestamp:
8/2/2015 3:31:15 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:XD1Ll2ZpujSiZF4g6sym2UG0IHhxDOgdV5:XBVDFHdKugf5

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...
 
[+]

Code size:
72.5 KB (74,240 bytes)

Service
Display name:
MaintainerSvc1.92.5302915

Type:
Win32OwnProcess

Depends on:
RPCSS


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