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firefoxupdate.exe

Firefox

Chao Wei

The application firefoxupdate.exe by Chao Wei has been detected as a potentially unwanted program by 2 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “Update Service(FirefoxU)”.
Publisher:
Chao Wei  (signed and verified)

Product:
Firefox

Version:
47.0.52.224

MD5:
f8244c24813ced6ce85778a3a407ab4a

SHA-1:
1be83470c3b1d7dfc649155c8b44e1e18c5cd50c

Scanner detections:
2 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 2:35:30 AM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/Obfuscated.NIS trojan
6.3.12010.0

Reason Heuristics
Adware.Elex.Chao (M)
16.11.2.23

File size:
519.2 KB (531,632 bytes)

Product version:
47.0.52.224

Copyright:
Copyright (C) 2016 Firefox Authors

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\firefox\bin\firefoxupdate.exe

Digital Signature
Signed by:
Chao Wei

Authority:
thawte, Inc.

Valid from:
10/19/2016 7:00:00 AM

Valid to:
8/19/2017 6:59:59 AM

Subject:
CN=Chao Wei, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
3CED0BDE89F0F6D9E1DD710ACB0F0794

File PE Metadata
Compilation timestamp:
10/19/2016 11:23:33 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
6144:1UshNywFASDGaO/vMKN5KA085D3EFmdFspRf8CYcoytVRoAOX8Gfhk1:1UwNr9DGdvMKN5KZE0mdKXf8Bytw7U

Entry address:
0x3F049

Entry point:
E8, 87, 05, 00, 00, E9, 8E, FE, FF, FF, FF, 25, 64, 33, 46, 00, 8B, 4D, F4, 64, 89, 0D, 00, 00, 00, 00, 59, 5F, 5F, 5E, 5B, 8B, E5, 5D, 51, F2, C3, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, 70, F0, 47, 00, 33, C5, 50, FF, 75, FC, C7, 45, FC, FF, FF, FF, FF, 8D, 45, F4, 64, A3, 00, 00, 00, 00, F2, C3, 50, 64, FF, 35, 00, 00, 00, 00, 8D, 44, 24, 0C, 2B, 64, 24, 0C, 53, 56, 57, 89, 28, 8B, E8, A1, 70, F0, 47, 00, 33, C5, 50, 89, 65, F0, FF, 75, FC, C7, 45...
 
[+]

Entropy:
6.3724

Code size:
392 KB (401,408 bytes)

Service
Display name:
Update Service(FirefoxU)

Service name:
FirefoxU

Description:
Keeps your Firefox software up to date. If this service is disabled or stopped, your Firefox software will not be kept up to date, meaning security vulnerabilities that may arise cannot be fixed and f

Type:
Win32OwnProcess

Depends on:
RpcSs


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