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boxrock.expext.dll

Box Rock

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module boxrock.expext.dll by Box Rock has been detected as adware by 17 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:
Box Rock  (signed and verified)

Version:
1.0.5505.40821

MD5:
a296e8788f2c5c39223a961d771194bd

SHA-1:
6e5338792377e3629005bf88ebb06193c94f5179

SHA-256:
97518fc296d8d4f7d0d9197892bcfbf1bad7f13be42aeb0e6f3179e675894dfa

Scanner detections:
17 / 68

Status:
Adware

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

Analysis date:
4/23/2024 4:12:52 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.AT
6475091

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.205.178

avast!
Win32:BrowseFox-EZ [PUP]
150101-1

AVG
Generic
2016.0.3215

Baidu Antivirus
Adware.MSIL.BrowseFox
4.0.3.15128

Bitdefender
Adware.BrowseFox.AT
1.0.20.140

Emsisoft Anti-Malware
Adware.BrowseFox.AT
9.0.0.4799

ESET NOD32
MSIL/BrowseFox.L potentially unwanted application
7.0.302.0

F-Secure
Adware.BrowseFox.AT
5.13.68

G Data
Adware.BrowseFox.AT
15.1.25

K7 AntiVirus
Adware
13.193.14786

McAfee
BrowseFox-FUT
5600.6871

MicroWorld eScan
Adware.BrowseFox.AT
16.0.0.84

nProtect
Adware.BrowseFox.AT
15.01.28.01

Panda Antivirus
Trj/CI.A
15.01.28.12

Qihoo 360 Security
Win32/Virus.Adware.708
1.0.0.1015

Reason Heuristics
PUP.Yontoo
15.1.28.12

File size:
633.2 KB (648,424 bytes)

Product version:
1.0.5505.40821

Original file name:
BoxRock.ExpExt2015012806.dll

File type:
Dynamic link library (Win32 DLL)

Language:
Language Neutral

Common path:
C:\Program Files\box rock\bin\plugins\boxrock.expext.dll

Digital Signature
Signed by:
Box Rock

Authority:
VeriSign, Inc.

Valid from:
10/7/2014 1:00:00 AM

Valid to:
10/3/2015 12:59:59 AM

Subject:
CN=Box Rock, O=Box Rock, 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:
1125198B1C5DF8CC1185255178F1DAFC

File PE Metadata
Compilation timestamp:
1/28/2015 6:40:46 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:HiOZlugjIw494fBgRfXtgk69bheojw9CkL2fmuPdyA9PCv:HiODjIwRM9gqR0m8yAlq

Entry address:
0x9E322

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:
6.6261

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

Code size:
625 KB (640,000 bytes)

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