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b9a19c25a74147e591a264.dll

RightSurf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module b9a19c25a74147e591a264.dll by RightSurf has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
RightSurf  (signed and verified)

MD5:
12d9a4ddc57fab3207877b329f436d64

SHA-1:
41d2d5e91959a72f732c5d3b52f082f80fe3a64c

SHA-256:
10e01a310db3e1600a1bc41c6469573732ceea3c41a3e508ce2ccc386b9913f1

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:
11/14/2024 2:07:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.14.11

File size:
192.3 KB (196,896 bytes)

File type:
Dynamic link library (Win64 DLL)

Common path:
C:\Program Files\rightsurf\bin\b9a19c25a74147e591a264.dll

Digital Signature
Signed by:
RightSurf

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 5:30:00 AM

Valid to:
11/28/2014 5:29:59 AM

Subject:
CN=RightSurf, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=RightSurf, 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:
1E2DA13430E7E93CEF3759B2E4F7A34B

File PE Metadata
Compilation timestamp:
10/22/2014 6:00:22 PM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x116A8

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, 43, 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, 48, 89, 5C, 24, 10, 48, 89, 7C, 24, 18, 55, 48, 8B, EC, 48, 83, EC, 60, 48, 8B, FA, 48, 8B, D9, 48, 8D, 4D, C0, 48, 8D, 15, 15, 00, 01, 00, 41, B8, 40, 00, 00, 00, E8, DA, F4, FF, FF, 48, 8D, 55, 10, 48, 8B, CF, 48, 89, 5D, E8, 48, 89, 7D, F0, E8, B6, DD...
 
[+]

Entropy:
6.1762

Code size:
128 KB (131,072 bytes)

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