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6f9adda6a464.dll

Optical Surf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module 6f9adda6a464.dll by Optical Surf has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Optical Surf  (signed and verified)

MD5:
cefa04e42ca2407adc36441a497f2c6b

SHA-1:
3286d0d1e4d50897928ddc295a11dfd38fe0fde2

SHA-256:
347d991f4d6b38da1eac0001ed141386750b05137371acf07411f39a9748d498

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:
5/15/2024 6:17:57 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.14.21

File size:
192.2 KB (196,856 bytes)

File type:
Dynamic link library (Win64 DLL)

Common path:
C:\Program Files\optical surf\bin\6f9adda6a464.dll

Digital Signature
Signed by:
Optical Surf

Authority:
VeriSign, Inc.

Valid from:
12/17/2014 1:00:00 AM

Valid to:
12/18/2015 12:59:59 AM

Subject:
CN=Optical Surf, O=Optical Surf, 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:
373EFE200D490F79B1E099C7683F2A7C

File PE Metadata
Compilation timestamp:
1/11/2015 12:51:18 PM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x11748

Entry point:
48, 89, 5C, 24, 08, 48, 89, 74, 24, 10, 57, 48, 83, EC, 20, 49, 8B, F8, 8B, DA, 48, 8B, F1, 83, FA, 01, 75, 05, E8, 2F, 61, 00, 00, 4C, 8B, C7, 8B, D3, 48, 8B, CE, 48, 8B, 5C, 24, 30, 48, 8B, 74, 24, 38, 48, 83, C4, 20, 5F, E9, A7, FE, FF, FF, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 66, 66, 0F, 1F, 84, 00, 00, 00, 00, 00, 48, 8B, C1, 49, 83, F8, 08, 72, 53, 0F, B6, D2, 49, B9, 01, 01, 01, 01, 01, 01, 01, 01, 49, 0F, AF, D1, 49, 83, F8, 40, 72, 1E, 48, F7, D9, 83, E1, 07, 74, 06...
 
[+]

Code size:
128 KB (131,072 bytes)

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