home

firefoxupdate.exe

Firefox

Chao Wei

The application firefoxupdate.exe by Chao Wei has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. 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:
50.0.4.321

MD5:
d97b67e67171e7402fc5405bcfcbb008

SHA-1:
ec3ae5d850f151e1aa8fcda64a8dd36ce32c4a67

SHA-256:
a8d1f9e91c33f1e0b24b08829f62d917a085f000b452c62184443b37d2399811

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 2:56:40 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
16.12.2.8

File size:
191.6 KB (196,215 bytes)

Product version:
50.0.4.321

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:
11/28/2016 6:00:00 AM

Valid to:
8/19/2017 5:59:59 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:
48E306C3FE6E1DF075CC774F7103CFC2

File PE Metadata
Compilation timestamp:
11/29/2016 1:47:03 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
3072:nnFzrYcyHRvPaej4Xq8nkisys+oT2lQBV+UdE+rECWp7hKte:nNEJvydgmIBV+UdvrEFp7hKY

Entry address:
0x832A

Entry point:
E9, 6F, 88, 00, 00, E9, 8E, FE, FF, FF, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 58, 00, 00, 00, C7, 06, B4, 41, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, BC, 41, 41, 00, C7, 01, B4, 41, 41, 00, C3, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 25, 00, 00, 00, C7, 06, D0, 41, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, D8, 41, 41, 00, C7, 01, D0, 41, 41, 00, C3, 55, 8B, EC, 56, 8B, F1, 8D, 46, 04, C7, 06, 94, 41, 41, 00, 83...
 
[+]

Entropy:
7.2104

Packer / compiler:
Xtreme-Protector v1.05

Code size:
74.5 KB (76,288 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


Remove firefoxupdate.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.