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maintainer.exe

Square Corner

The application maintainer.exe by Square Corner has been detected as a potentially unwanted program by 26 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:
Square Corner  (signed and verified)

Version:
1.0.5759.25451

MD5:
db622d5d571a14637d551b344550e4c5

SHA-1:
c832f32220e5722617e7f741c5443228777b43b3

SHA-256:
8b4046a31085f374ace519b25a6556b975d43eac12f54bda718b350979f894bc

Scanner detections:
26 / 68

Status:
Potentially unwanted

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

Analysis date:
4/26/2024 10:40:29 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Mikey.15887
484

Agnitum Outpost
PUA.Yotoon
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.10.09

Avira AntiVirus
ADWARE/BrowseFox.Gen7
8.3.2.2

avast!
Win32:BrowseFox-JJ [PUP]
2014.9-151009

AVG
AdPlugin
2016.0.2962

Bitdefender
Gen:Variant.Adware.Mikey.15887
1.0.20.1410

Bkav FE
W32.HfsAdware
1.3.0.7237

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

Dr.Web
Trojan.Yontoo.2594
9.0.1.0282

Emsisoft Anti-Malware
Gen:Variant.Adware.Mikey.15887
8.15.10.09.08

ESET NOD32
Win32/BrowseFox.BD potentially unwanted
9.12378

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

F-Secure
Gen:Variant.Adware.Mikey
11.2015-09-10_6

G Data
Gen:Variant.Adware.Mikey.15887
15.10.25

K7 AntiVirus
Adware
13.210.17474

Malwarebytes
PUP.Optional.BrowseFox
v2015.10.09.08

McAfee
BrowseFox-FXS
5600.6618

MicroWorld eScan
Gen:Variant.Adware.Mikey.15887
16.0.0.846

NANO AntiVirus
Trojan.Win32.Yontoo.dpmcsm
0.30.26.3947

Reason Heuristics
Adware.Yontoo.Service.Service.Meta (M)
15.10.9.8

Rising Antivirus
PE:AdWare.Win32.BrowseFox.i!1615936[F1]
23.00.65.151007

Sophos
Browse Fox (PUA)
4.98

SUPERAntiSpyware
PUP.Yontoo/Variant
9580

Vba32 AntiVirus
AdWare.DealKeeper
3.12.26.4

Zillya! Antivirus
Adware.Agent.Win32.52012
2.0.0.2435

File size:
125.2 KB (128,224 bytes)

Product version:
1.0.5759.25451

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\ecbaef90-5696-41e1-a1c3-3e8112ce2840\maintainer.exe

Digital Signature
Signed by:
Square Corner

Authority:
VeriSign, Inc.

Valid from:
4/29/2015 7:00:00 PM

Valid to:
4/29/2016 6:59:59 PM

Subject:
CN=Square Corner, O=Square Corner, 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:
52626BC0EA278192E7FA51F91BA8DF92

File PE Metadata
Compilation timestamp:
10/8/2015 4:08:26 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:jD1Ll2ZpujSiZF4g6sym2UG0IHhxDOs9VsWS:jBVDFHdKus/sv

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...
 
[+]

Entropy:
6.2066

Code size:
72.5 KB (74,240 bytes)

Service
Display name:
MaintainerSvc1.92.5302915

Type:
Win32OwnProcess

Depends on:
RPCSS


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