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d3c164.dll

thirteen degrees

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module d3c164.dll, “TODO: <File description>” by thirteen degrees has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
TODO: <Company name>  (signed by thirteen degrees)

Description:
TODO: <File description>

Version:
4.0.0.3

MD5:
f7051dc2a82ed592a36379ca4bc5e097

SHA-1:
cc76e745418ff1ae9c271596ec30fe0be1250e89

SHA-256:
9df6198d184b953f26b85c577279d578926208f92a2049e5eff537c791604a18

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:
2/7/2026 9:43:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.17.17

File size:
250.7 KB (256,736 bytes)

Product version:
4.0.0.3

Copyright:
TODO: (c) <Company name>. All rights reserved.

File type:
Dynamic link library (Win64 DLL)

Language:
English (United States)

Common path:
C:\Program Files\thirteen degrees\bin\d3c164.dll

Digital Signature
Signed by:
thirteen degrees

Authority:
VeriSign, Inc.

Valid from:
4/30/2015 3:00:00 AM

Valid to:
4/30/2016 2:59:59 AM

Subject:
CN=thirteen degrees, O=thirteen degrees, 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:
7EC505CB2A21F49EDC7F06FD1E77EFC8

File PE Metadata
Compilation timestamp:
1/11/2015 2:51:28 PM

OS version:
5.2

OS bitness:
Win64

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x1A090

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, 60, 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, 8D, 05, 49, 62, 00, 00, 48, 8D, 0D, 92, 6D, 00, 00, 48, 89, 05, C3, 01, 02, 00, 48, 8D, 05, 24, 62, 00, 00, 48, 89, 0D, AD, 01, 02, 00, 48, 89, 05, B6, 01, 02, 00, 48, 8D, 05, 17, 62, 00, 00, 48, 89, 0D, C0, 01, 02, 00, 48, 89, 05, A9, 01, 02, 00, 48...
 
[+]

Entropy:
6.0650

Code size:
156.5 KB (160,256 bytes)

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