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51b9c91c8e3840ae80de64.dll

TasticSurf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module 51b9c91c8e3840ae80de64.dll by TasticSurf has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
TasticSurf  (signed and verified)

MD5:
77d256ec05881c2ee59592ce0639f0c4

SHA-1:
532e0fc157eff27ddc4c36213da30460e04af057

SHA-256:
5f7fcf1bb171f81523af2ec03959d413594bdd847beb659b01d1e5c495c401af

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:
11/30/2024 8:52:52 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.TasticSurf (M)
16.2.17.8

File size:
192.7 KB (197,360 bytes)

File type:
Dynamic link library (Win64 DLL)

Common path:
C:\Program Files\advanceelite\bin\51b9c91c8e3840ae80de64.dll

Digital Signature
Signed by:
TasticSurf

Authority:
VeriSign, Inc.

Valid from:
11/4/2014 5:00:00 AM

Valid to:
1/4/2016 4:59:59 AM

Subject:
CN=TasticSurf, O=TasticSurf, 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:
6D2C37BF960997763055AC9274C52D6C

File PE Metadata
Compilation timestamp:
11/12/2014 7:33:11 PM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:nfcIzRvrZMNkq+m+6Ai2Tjn0lUAA2t90CVQIeqSCsJn:n0Izz2kq+m0i2TjnUUAA2t9/cqOJn

Entry address:
0x11738

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, 13, 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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