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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 7 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:
1.0.5468.35390

MD5:
62cfdb074f9dc8bfecca09a08083d940

SHA-1:
7e223b56b46912d1d3743f74e7e316f8b1ec3615

SHA-256:
7547f1478eb55c658764ebfcb5a771345583714acff8c702b00c540be49e5565

Scanner detections:
7 / 68

Status:
Adware

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

Analysis date:
4/25/2024 7:19:04 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.12.22

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.197.30

avast!
Win32:BrowseFox-EZ [PUP]
141214-1

AVG
Generic
2015.0.3253

ESET NOD32
MSIL/BrowseFox.L potentially unwanted application
7.0.302.0

K7 AntiVirus
Adware
13.188.14395

Reason Heuristics
PUP.BoxRock.N
14.12.22.4

File size:
583.7 KB (597,736 bytes)

Product version:
1.0.5468.35390

Original file name:
BoxRock.ExpExt2014122203.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:
12/22/2014 3:39:46 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:hOn+4ebLER+avkcy5DuWYm113m/SVbtjbPXh3l179UaZxENmMjM7KBlyvNu8ipVy:hB4yavkcGOA45jM7KBlyvNGQk6j

Entry address:
0x91CFE

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:
6.4592

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

Code size:
575.5 KB (589,312 bytes)

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