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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:
49.0.4.307

MD5:
fc33b12b2e14b3e0be433ca9e6367497

SHA-1:
8a69ee652bca8a820fa524c0313ffbfa416d5838

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 2:12:51 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
16.11.20.14

File size:
267.2 KB (273,584 bytes)

Product version:
49.0.4.307

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:
11/1/2016 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:
1579BADCC703A48CF6490B89F550201D

File PE Metadata
Compilation timestamp:
11/4/2016 11:12:48 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

CTPH (ssdeep):
3072:lEFzrwcTvYqJeCytSdHK53K43kcCsjZuQ/rlFIf/zBFsiTHBWvcVIxAx2d:lM06eAevhjE6FIf/EiTH2cVIxUE

Entry address:
0x76A5

Entry point:
60, C0, EF, 58, 88, E7, 32, DF, C1, EF, EF, D2, F3, 89, DB, F7, C7, A2, EA, D8, A2, C6, C5, 6B, 18, CC, 40, 69, F7, 32, 3D, 8B, BE, F2, 89, DD, 31, D9, E8, 00, 00, 00, 00, C7, C3, 66, 70, CC, 3C, 80, D1, 51, F7, C7, 77, BF, 63, 6E, 69, DA, CF, FE, BF, A3, 0F, AF, CA, B2, 25, 2B, F6, B1, 89, 0F, AF, FD, 5B, 24, 32, 87, E8, 8D, 05, 10, A2, FB, 9B, 8D, 15, FA, D6, 87, 8C, B0, 5E, FE, C4, 0F, A5, C7, FE, C4, 0F, AF, E8, 0F, C1, FE, 0F, AF, FE, 0F, AD, C7, 86, F6, 0F, A3, C6, 68, 4C, 1A, 0A, 00, F3, C7, C2, 01...
 
[+]

Entropy:
5.9700

Code size:
71 KB (72,704 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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