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okiitan.expextdll.dll

Okiitan

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module okiitan.expextdll.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:
1.0.5566.36247

MD5:
77d6a1066736d31587460ccc6b6c03da

SHA-1:
5f2bfe4258374fcaacfca228f99c7823c2cfddef

SHA-256:
098010f3d10466b027857eef6f6b22fc198c6ec555a38f26d99ffe48ddeed6f5

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 12:27:57 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
16.11.27.17

File size:
79.7 KB (81,648 bytes)

Product version:
1.0.5566.36247

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\okiitan\bin\okiitan.expextdll.dll

Digital Signature
Signed by:
Okiitan

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 12:08:57 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
768:S8jy694/7LsWkFMalLepofSEtkU5yXNkOhPpEniteDH/J6/Wfed76n2YEDZ4w47w:/WuKk3lIo8kCanqeV1fwCoM4

Entry address:
0x37C0

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 0E, 2F, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 60, D2, 00, 10, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, 74, D0, 00, 10, C9, C2, 08, 00, B8, 23, 72, 00, 10, A3, D8, 19, 01, 10, C7, 05, DC, 19, 01, 10, 19...
 
[+]

Code size:
47 KB (48,128 bytes)

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