okiitan.expext.dll

Okiitan

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module okiitan.expext.dll by Okiitan has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Okiitan  (signed and verified)

Version:
1.0.5566.34483

MD5:
7b46ed9c37b6e18ca27afc828b9a0eae

SHA-1:
ccca00d0f9b8ee9a44aa47b8fd9a1cb15c2bbeb7

SHA-256:
feb08705c1ffb278b58d9f4e138f4c8c011797b370e0207ac25faa17ff48e3b9

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
12/25/2024 12:05:53 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
16.11.27.17

File size:
498.2 KB (510,192 bytes)

Product version:
1.0.5566.34483

Original file name:
Okiitan.ExpExt2015033003.dll

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\Program Files\okiitan\bin\plugins\okiitan.expext.dll

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
2/3/2015 9:00:00 PM

Valid to:
3/5/2016 8:59:59 PM

Subject:
CN=Okiitan, O=Okiitan, 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:
708EB34BD0F8ABCE53E08BACB2EB7801

File PE Metadata
Compilation timestamp:
3/30/2015 12:09:40 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
12288:cbpJIfcUn9KmqrFLfqDZjcB/ZKzvbvxDi:cowmqrFmD1cZZevdW

Entry address:
0x7C7BA

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, C0, 07, 00, 0C, 00, 00, 00, BC, 37, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

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

Code size:
490 KB (501,760 bytes)

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