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firefoxupdate.exe

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)

MD5:
a3ecfda12a545fdfd8ba80d2df5e8a3e

SHA-1:
edfbbd0858acff3f0b95a5e88ecd2815afb41609

SHA-256:
d5689afd4c056924fa8b8876fef67860decde98813788eb1471ca62368928cee

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
1/11/2025 12:09:20 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex.Chao (M)
17.3.16.12

File size:
184.1 KB (188,535 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Chao Wei

Authority:
thawte, Inc.

Valid from:
1/12/2017 4:00:00 PM

Valid to:
8/18/2017 4:59:59 PM

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:
45A8458D05878B9FE97F9367F3956CDE

File PE Metadata
Compilation timestamp:
3/15/2017 10:51:59 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x661E

Entry point:
E9, 78, 2B, 00, 00, E9, 8E, FE, FF, FF, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 58, 00, 00, 00, C7, 06, A4, 21, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, AC, 21, 41, 00, C7, 01, A4, 21, 41, 00, C3, 55, 8B, EC, 56, FF, 75, 08, 8B, F1, E8, 25, 00, 00, 00, C7, 06, C0, 21, 41, 00, 8B, C6, 5E, 5D, C2, 04, 00, 83, 61, 04, 00, 8B, C1, 83, 61, 08, 00, C7, 41, 04, C8, 21, 41, 00, C7, 01, C0, 21, 41, 00, C3, 55, 8B, EC, 56, 8B, F1, 8D, 46, 04, C7, 06, 84, 21, 41, 00, 83...
 
[+]

Entropy:
7.2377

Packer / compiler:
Xtreme-Protector v1.05

Code size:
67.5 KB (69,120 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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