constasurfbho.dll

ConstaSurf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module constasurfbho.dll by ConstaSurf has been detected as adware by 35 anti-malware scanners. It is installed within the context of Internet Explore as a BHO (Browser Helper Object) under the name ‘ConstaSurf 1.0.0.7’. 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:
ConstaSurf  (signed and verified)

Product:
ConstaSurf

Version:
1.0.0.7

MD5:
547caeb577be0d871950ef56e31e0cc7

SHA-1:
de41e1c58c48374771e03d0b41b8c912a70f8adc

SHA-256:
ca0eb73b4c1c568494ab1486a8aa47b70f161b04faa7a0fdc42dfd65ce37a634

Scanner detections:
35 / 68

Status:
Adware

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

Analysis date:
4/24/2024 12:32:04 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.N
356

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.BrowseFox
2015.05.18

Avira AntiVirus
ADWARE/BrowseFox.apf
8.3.1.6

avast!
Win32:BrowseFox-AC [PUP]
2014.9-160213

AVG
BrowseFox.F
2017.0.2834

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16213

Bitdefender
Adware.SwiftBrowse.N
1.0.20.220

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.BrowseFox.JM
22152

Dr.Web
Trojan.Yontoo.1734
9.0.1.044

Emsisoft Anti-Malware
Adware.SwiftBrowse.N
8.16.02.13.06

ESET NOD32
Win32/BrowseFox.O potentially unwanted (variant)
10.11641

Fortinet FortiGate
Riskware/BrowseFox
2/13/2016

F-Prot
W32/S-7bed2e86
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.N
11.2016-13-02_7

G Data
Adware.SwiftBrowse
16.2.25

IKARUS anti.virus
PUA.BrowseFox
t3scan.1.8.6.0

K7 AntiVirus
Trojan
13.204.15935

Malwarebytes
PUP.Optional.ConstaSurf.A
v2016.02.13.06

McAfee
BrowseFox
5600.6490

MicroWorld eScan
Adware.SwiftBrowse.N
17.0.0.132

NANO AntiVirus
Trojan.Win32.BPlug.dfogbn
0.30.24.1357

Norman
Adware.SwiftBrowse.N
11.20160213

nProtect
Adware.SwiftBrowse.N
15.05.15.01

Panda Antivirus
Trj/CI.A
16.02.13.06

Qihoo 360 Security
Win32/Virus.Adware.4f7
1.0.0.1015

Quick Heal
PUA.Constasurf.Gen
2.16.14.00

Reason Heuristics
PUP.Yontoo.ConstaSurf (M)
16.2.13.18

Sophos
Browse Fox
4.98

SUPERAntiSpyware
Adware.Yontoo/Variant
9325

Trend Micro House Call
TROJ_GEN.F0C2C00LQ14
7.2.44

Trend Micro
TROJ_GEN.F0C2C00LQ14
10.465.13

Vba32 AntiVirus
AdWare.Kranet
3.12.26.4

VIPRE Antivirus
Yontoo
40318

File size:
262.8 KB (269,088 bytes)

Product version:
1.0.0.7

Copyright:
(c) ConstaSurf. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\constasurf\constasurfbho.dll

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
3/19/2014 8:00:00 AM

Valid to:
3/20/2015 7:59:59 AM

Subject:
CN=ConstaSurf, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=ConstaSurf, 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:
46A82C62F93896A2C29C94EC6C4D8A3D

File PE Metadata
Compilation timestamp:
2/2/2015 9:55:38 PM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:DGCffwKELk3SVaUs09HxB+4Ylq3gY+yEm+ZKTfhqO6c0ND:DGCff44SVcwHvt7+Z4h5kD

Entry address:
0xF515

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, EA, 7E, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, C8, 21, 03, 10, E8, 4C, 02, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 4C, 77, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, C4, 93, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.0720

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

Internet Explorer BHO
Display name:
ConstaSurf 1.0.0.7

CLSID:
{d7356335-81bf-4769-bfbd-2e2889138641}


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