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updater.exe

Okiitan

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application updater.exe by Okiitan has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “UpdaterSvcOkiitan”.
Publisher:
Okiitan  (signed and verified)

Version:
1.0.0.4

MD5:
d6ec700926b7e51eb95eb2459b5a6d77

SHA-1:
a41bba3a046ad208800ea4018990852372b30d8f

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:
5/10/2024 3:18:47 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.17.19

File size:
132.8 KB (135,960 bytes)

Product version:
1.0.0.4

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\okiitan\updater.exe

Digital Signature
Signed by:
Okiitan

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 2:00:00 AM

Valid to:
2/5/2015 1:59:59 AM

Subject:
CN=Okiitan, OU=Digital ID Class 3 - Microsoft Software Validation v2, 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:
72D4F4A7BAF3F88B2B0D2403A4F6CFDB

File PE Metadata
Compilation timestamp:
7/9/2014 9:14:17 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x9CFB

Entry point:
E8, 01, 70, 00, 00, E9, 7F, FE, FF, FF, 6A, 08, 68, F8, B2, 41, 00, E8, 8F, 00, 00, 00, FF, 35, F4, E6, 41, 00, FF, 15, 88, 51, 41, 00, 85, C0, 74, 16, 83, 65, FC, 00, FF, D0, EB, 07, 33, C0, 40, C3, 8B, 65, E8, C7, 45, FC, FE, FF, FF, FF, E8, 01, 00, 00, 00, CC, 6A, 08, 68, D8, B2, 41, 00, E8, 57, 00, 00, 00, E8, 26, 3E, 00, 00, 8B, 40, 78, 85, C0, 74, 16, 83, 65, FC, 00, FF, D0, EB, 07, 33, C0, 40, C3, 8B, 65, E8, C7, 45, FC, FE, FF, FF, FF, E8, 13, 71, 00, 00, CC, E8, FE, 3D, 00, 00, 8B, 40, 7C, 85, C0...
 
[+]

Code size:
79.5 KB (81,408 bytes)

Service
Display name:
UpdaterSvcOkiitan

Type:
Win32OwnProcess

Depends on:
RPCSS


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