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RightSurf.BOAS.dll

RightSurf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module RightSurf.BOAS.dll by RightSurf has been detected as adware by 24 anti-malware scanners. 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:
RightSurf  (signed and verified)

Version:
1.0.5501.30284

MD5:
d2d163341bb3f67ea802a4accd3fbf79

SHA-1:
cf522c352d91f71aa6caf15a858b4f445b0f893e

SHA-256:
acd483c6b859cc1cfd098678be4851e9bbb8b52c1b7596c6dcde54eccf2fb287

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
4/26/2024 4:22:49 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.AU
6434017

AhnLab V3 Security
PUP/Win32.Helper
2015.01.25

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.204.248

avast!
Win32:BrowseFox-Z [PUP]
150102-1

AVG
Generic
2016.0.3219

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.15125

Bitdefender
Adware.BrowseFox.AU
1.0.20.125

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.MSIL.BrowseFox.A
20835

Dr.Web
Trojan.Yontoo.494
9.0.1.05190

Emsisoft Anti-Malware
Adware.BrowseFox.AU
9.0.0.4799

ESET NOD32
MSIL/BrowseFox.G potentially unwanted application
7.0.302.0

F-Prot
W32/S-6973b2a4
v6.4.7.1.166

F-Secure
Adware.BrowseFox.AU
5.13.68

G Data
Adware.BrowseFox.AU
15.1.24

K7 AntiVirus
Adware
13.192.14746

Kaspersky
not-a-virus:HEUR:AdWare.MSIL.Kranet
14.0.0.2590

Malwarebytes
PUP.Optional.Sanbreel.A
v2015.01.25.01

McAfee
Program.BrowseFox.a
16.8.708.2

MicroWorld eScan
Adware.BrowseFox.AU
16.0.0.75

NANO AntiVirus
Riskware.Win32.BPlug.djpkri
0.30.0.64812

nProtect
Adware.BrowseFox.AU
15.01.23.01

Reason Heuristics
PUP.Yontoo
15.1.25.1

VIPRE Antivirus
Threat.4741131
36666

File size:
2.7 MB (2,815,728 bytes)

Product version:
1.0.5501.30284

Original file name:
RightSurf.BOAS.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\rightsurf\bin\plugins\rightsurf.boas.dll

Digital Signature
Signed by:
RightSurf

Authority:
VeriSign, Inc.

Valid from:
11/4/2014 5:30:00 AM

Valid to:
1/4/2016 5:29:59 AM

Subject:
CN=RightSurf, O=RightSurf, 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:
1E8F736F9D4CC702BAD040A691E0353D

File PE Metadata
Compilation timestamp:
1/23/2015 10:19:43 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
8.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
49152:WgL8cK9mYixLqA03XI5yn8iNlpj9mhLiq5b8YZqgYFJozTJvMSh5:WgLRK9gxLXq8iNHJmxiE8Y8zJETJ3h5

Entry address:
0x2AF43E

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.9119

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
2.7 MB (2,807,296 bytes)

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