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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:
49.0.6.311

MD5:
597cc23b0da11387ac97dbcb49378ed8

SHA-1:
5061d2e49982b2a64bf10f1b59079e73c72cbdf7

SHA-256:
efea7a4d30cf11fd1d436440f4e3814b515aed0cdf69008c3453901b03aa49ec

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 2:37:25 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
16.12.1.4

File size:
190.6 KB (195,191 bytes)

Product version:
49.0.6.311

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:
11/16/2016 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:
476D13B315A3916791CD1AC3F7E8F714

File PE Metadata
Compilation timestamp:
11/17/2016 9:20:53 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
3072:slFzrf/Z4AkLnRGkjoyq8nXBGso+6W2lQBV+UdE+rECWp7hKe:szzB4jxrRxBV+UdvrEFp7hKe

Entry address:
0x805A

Entry point:
E9, 5D, F1, FF, FF, 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:
7.2264

Packer / compiler:
tElock 0.99 - 1.0 private

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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