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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 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:
50.0.2.314

MD5:
031235abb510b8d4676812da1d5bed3c

SHA-1:
2f5a5591d5e492db65083695f799c0f8d688d2da

SHA-256:
de510366a3ea1cfb55b67e8e4163495bb545f1bf7bc63e48a190b305e8573361

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 2:47:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
16.11.26.1

File size:
190.6 KB (195,191 bytes)

Product version:
50.0.2.314

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:
11/23/2016 8:00:00 AM

Valid to:
8/19/2017 7:59:59 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:
2DB2335D24D822A67461379EB4A5D215

File PE Metadata
Compilation timestamp:
11/23/2016 11:39:50 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
3072:UlFzrWc/7HgoMLnhGTj9yq8nX2M4+UoFHh2lQBV+UdE+rECWp7hKogJky:UzCmHgTpFBRB1BV+UdvrEFp7hKogH

Entry address:
0x805A

Entry point:
E9, 1C, 4D, 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:
7.2210

Packer / compiler:
Xtreme-Protector v1.05

Code size:
73.5 KB (75,264 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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