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webfuii.browserfilter.helper.dll.old.44764440-2395-46e5-82db-450a1d911e8e

Webfuii

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file webfuii.browserfilter.helper.dll.old.44764440-2395-46e5-82db-450a1d911e8e by Webfuii has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Webfuii  (signed and verified)

MD5:
cfca29a20393218baf690430cdc815ce

SHA-1:
4e6e9687e54e03c746a1ae12487f8d21d25ce73a

SHA-256:
42ab77c402111b168f2ea4dd47260eeb68ccb23f3e7989bcfba2cd9b4ac9939e

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:
4/19/2024 4:57:01 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.Webfuii (M)
16.2.4.17

File size:
388.8 KB (398,104 bytes)

Common path:
C:\Program Files\webfuii\bin\webfuii.browserfilter.helper.dll.old.44764440-2395-46e5-82db-450a1d911e8e

Digital Signature
Signed by:
Webfuii

Authority:
VeriSign, Inc.

Valid from:
10/7/2013 1:00:00 AM

Valid to:
10/8/2014 12:59:59 AM

Subject:
CN=Webfuii, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Webfuii, 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:
658C92DE4B1AFFD7A1D69F49D0D049BA

File PE Metadata
Compilation timestamp:
3/4/2014 5:04:47 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
3072:uRLdBzWsg2wx/LuLK4Sce91SsFbGMG+/zxpzwU/NO554mWLdjlrO4Asi7Hgw:KLdHsLe/aJxGMGuxpR1OoNtOcCHz

Entry address:
0x1A2DA

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, F5, 61, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 40, D4, 05, 10, 89, 0D, 3C, D4, 05, 10, 89, 15, 38, D4, 05, 10, 89, 1D, 34, D4, 05, 10, 89, 35, 30, D4, 05, 10, 89, 3D, 2C, D4, 05, 10, 66, 8C, 15, 58, D4, 05, 10, 66, 8C, 0D, 4C, D4, 05, 10, 66, 8C, 1D, 28, D4, 05, 10, 66, 8C, 05, 24, D4, 05, 10, 66, 8C, 25, 20, D4, 05, 10, 66, 8C, 2D, 1C, D4, 05, 10, 9C, 8F, 05, 50, D4...
 
[+]

Entropy:
4.9093

Code size:
174 KB (178,176 bytes)

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