uninstall.exe

  • File Path: C:\Program Files (x86)\NVDA\uninstall.exe

Hashes

Type Hash
MD5 F5B1D84438A3E34FDAD1AF8AC4623F40
SHA1 6F96DE0A1114E13A201B918BD76988B1FAB63041
SHA256 0B8D1B0C541560FEABAA846A095E6E0213960A1A83E28CEF6ED03478BBF1D32B
SHA384 3445861B002C810669AABA263009818CEFC9137051A551867B94DEEB30B0F0BA7668D310D032AEE50278D757DC87EE50
SHA512 585206267A956FDEE0AA7A93BCE6DCE47AF531121B0DCE1B1FAA8D65B03FEC84A7D3B57B85A82B0A37BD350B93805DC513D4EFBEAD0D5CF7265E9A7D5F5E81BE
SSDEEP 1536:YRPYqa5pic6jXFdL2KiMcWIUgdLeAyNlsSKHgdZD6gVgae84wTcZO:8PA6jXFN2MctUceAKPDmwg0
IMP B1A57B635B23FFD553B3FD1E0960B2BD
PESHA1 A50DADAA61E53CBF3DCC491E5DCACD0D739EB452
PE256 C9944D66469BA7B7B724D6286578114E342B8124D202987A807E8080DDE78246

Runtime Data

Child Processes:

Au_.exe

Loaded Modules:

Path
C:\Program Files (x86)\NVDA\uninstall.exe
C:\Windows\SYSTEM32\ntdll.dll
C:\Windows\System32\wow64.dll
C:\Windows\System32\wow64cpu.dll
C:\Windows\System32\wow64win.dll

Signature

  • Status: Signature verified.
  • Serial: 01F88F85EC0E5501C9810C1D40F77C21
  • Thumbprint: B1CFD0C99D00FC4B8FBCAA1BA24FA48F6770C461
  • Issuer: CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US
  • Subject: E=sysadmin@nvaccess.org, CN=NV Access Limited, O=NV Access Limited, L=Camp Mountain, S=Queensland, C=AU

File Metadata

  • Original Filename:
  • Product Name:
  • Company Name:
  • File Version:
  • Product Version:
  • Language: Language Neutral
  • Legal Copyright:
  • Machine Type: 32-bit

File Scan

  • VirusTotal Detections: 0/73
  • VirusTotal Link: https://www.virustotal.com/gui/file/0b8d1b0c541560feabaa846a095e6e0213960a1a83e28cef6ed03478bbf1d32b/detection

File Similarity (ssdeep match)

File Score
C:\Program Files (x86)\ImgBurn\uninstall.exe 52
C:\Program Files (x86)\NVDA\uninstall.exe 68
C:\Program Files\Krita (x64)\uninstall.exe 33

Possible Misuse

The following table contains possible examples of uninstall.exe being misused. While uninstall.exe is not inherently malicious, its legitimate functionality can be abused for malicious purposes.

Source Source File Example License
sigma win_builtin_remove_application.yml title: An Application Is Uninstall DRL 1.0
sigma win_susp_system_update_error.yml - 24 # Uninstallation Failure: Windows failed to uninstall the following update with error DRL 1.0
sigma posh_ps_software_discovery.yml ScriptBlockText\|contains\|all: # Example: Get-ItemProperty HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\* \| Select-Object DisplayName, DisplayVersion, Publisher, InstallDate \| Format-Table -Autosize DRL 1.0
sigma proc_creation_win_cleanwipe.yml CommandLine\|contains: '--uninstall' DRL 1.0
sigma proc_creation_win_cleanwipe.yml - '/uninstall' DRL 1.0
sigma proc_creation_win_dsim_remove.yml description: Deployment Image Servicing and Management tool. DISM is used to enumerate, install, uninstall, configure, and update features and packages in Windows images DRL 1.0
sigma proc_creation_win_susp_disable_raccine.yml title: Raccine Uninstall DRL 1.0
sigma proc_creation_win_susp_wmic_security_product_uninstall.yml title: Wmic Uninstall Security Product DRL 1.0
sigma proc_creation_win_susp_wmic_security_product_uninstall.yml - 'call uninstall' DRL 1.0
sigma proc_creation_win_uninstall_crowdstrike_falcon.yml title: Uninstall Crowdstrike Falcon DRL 1.0
sigma proc_creation_win_uninstall_crowdstrike_falcon.yml - ' /uninstall' DRL 1.0
sigma proc_creation_win_uninstall_crowdstrike_falcon.yml - Uninstall by admin DRL 1.0
sigma proc_creation_win_uninstall_sysmon.yml title: Uninstall Sysinternals Sysmon DRL 1.0
sigma proc_creation_win_uninstall_sysmon.yml - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1562.001/T1562.001.md#atomic-test-11---uninstall-sysmon DRL 1.0
sigma proc_creation_win_wmic_remove_application.yml title: WMI Uninstall An Application DRL 1.0
sigma proc_creation_win_wmic_remove_application.yml description: Uninstall an application with wmic DRL 1.0
sigma proc_creation_win_wmic_remove_application.yml - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1047/T1047.md#atomic-test-10---application-uninstall-using-wmic DRL 1.0
sigma proc_creation_win_wmic_remove_application.yml CommandLine\|contains: call uninstall DRL 1.0
LOLBAS Installutil.yml Description: The Installer tool is a command-line utility that allows you to install and uninstall server resources by executing the installer components in specified assemblies  
malware-ioc rtm uninstall © ESET 2014-2018
malware-ioc rtm uninstall-lock © ESET 2014-2018
atomic-red-team index.md - Atomic Test #11: Uninstall Sysmon [windows] MIT License. © 2018 Red Canary
atomic-red-team index.md - Atomic Test #21: Uninstall Crowdstrike Falcon on Windows [windows] MIT License. © 2018 Red Canary
atomic-red-team index.md - Atomic Test #5: InstallUtil Uninstall method call - /U variant [windows] MIT License. © 2018 Red Canary
atomic-red-team index.md - Atomic Test #6: InstallUtil Uninstall method call - ‘/installtype=notransaction /action=uninstall’ variant [windows] MIT License. © 2018 Red Canary
atomic-red-team index.md - Atomic Test #1: Regasm Uninstall Method Call Test [windows] MIT License. © 2018 Red Canary
atomic-red-team index.md - Atomic Test #2: Regsvcs Uninstall Method Call Test [windows] MIT License. © 2018 Red Canary
atomic-red-team index.md - Atomic Test #10: Application uninstall using WMIC [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #11: Uninstall Sysmon [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #21: Uninstall Crowdstrike Falcon on Windows [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #5: InstallUtil Uninstall method call - /U variant [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #6: InstallUtil Uninstall method call - ‘/installtype=notransaction /action=uninstall’ variant [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #1: Regasm Uninstall Method Call Test [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #2: Regsvcs Uninstall Method Call Test [windows] MIT License. © 2018 Red Canary
atomic-red-team windows-index.md - Atomic Test #10: Application uninstall using WMIC [windows] MIT License. © 2018 Red Canary
atomic-red-team T1047.md - Atomic Test #10 - Application uninstall using WMIC MIT License. © 2018 Red Canary
atomic-red-team T1047.md ## Atomic Test #10 - Application uninstall using WMIC MIT License. © 2018 Red Canary
atomic-red-team T1047.md Emulates uninstalling applications using WMIC. This method only works if the product was installed with an msi file. APTs have been seen using this to uninstall security products. MIT License. © 2018 Red Canary
atomic-red-team T1047.md wmic /node:”#{node}” product where “name like ‘#{product}%%’” call uninstall MIT License. © 2018 Red Canary
atomic-red-team T1095.md if( $null -eq (Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall* | ?{$_.DisplayName -like “Microsoft Visual C++*”}) ) { MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md - Atomic Test #5 - InstallUtil Uninstall method call - /U variant MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md - Atomic Test #6 - InstallUtil Uninstall method call - ‘/installtype=notransaction /action=uninstall’ variant MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md ## Atomic Test #5 - InstallUtil Uninstall method call - /U variant MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md Executes the Uninstall Method. Upon execution, version information will be displayed the .NET framework install utility. MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md InstallUtil Uninstall method execution test failure. Installer assembly execution output did not match the expected output. MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md ## Atomic Test #6 - InstallUtil Uninstall method call - ‘/installtype=notransaction /action=uninstall’ variant MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md $CommandLine = “/logfile= /logtoconsole=false /installtype=notransaction /action=uninstall "$InstallerAssemblyFullPath”” MIT License. © 2018 Red Canary
atomic-red-team T1218.004.md Executes the Uninstall Method. Upon execution, help information will be displayed for InstallUtil. MIT License. © 2018 Red Canary
atomic-red-team T1218.009.md - Atomic Test #1 - Regasm Uninstall Method Call Test MIT License. © 2018 Red Canary
atomic-red-team T1218.009.md - Atomic Test #2 - Regsvcs Uninstall Method Call Test MIT License. © 2018 Red Canary
atomic-red-team T1218.009.md ## Atomic Test #1 - Regasm Uninstall Method Call Test MIT License. © 2018 Red Canary
atomic-red-team T1218.009.md Executes the Uninstall Method, No Admin Rights Required. Upon execution, “I shouldn’t really execute either.” will be displayed. MIT License. © 2018 Red Canary
atomic-red-team T1218.009.md ## Atomic Test #2 - Regsvcs Uninstall Method Call Test MIT License. © 2018 Red Canary
atomic-red-team T1218.009.md Executes the Uninstall Method, No Admin Rights Required, Requires SNK. Upon execution, “I shouldn’t really execute” will be displayed MIT License. © 2018 Red Canary
atomic-red-team T1219.md $file = ‘C:\Program Files (x86)\TeamViewer\uninstall.exe’ MIT License. © 2018 Red Canary
atomic-red-team T1219.md get-package ‘LogMeIn Client’ -ErrorAction Ignore | uninstall-package MIT License. © 2018 Red Canary
atomic-red-team T1505.002.md Uninstall-TransportAgent #{transport_agent_identity} MIT License. © 2018 Red Canary
atomic-red-team T1518.md Get-ItemProperty HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate | Format-Table -Autosize MIT License. © 2018 Red Canary
atomic-red-team T1518.md Get-ItemProperty HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall* | Select-Object DisplayName, DisplayVersion, Publisher, InstallDate | Format-Table -Autosize MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md - Atomic Test #11 - Uninstall Sysmon MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md - Atomic Test #21 - Uninstall Crowdstrike Falcon on Windows MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md ## Atomic Test #11 - Uninstall Sysmon MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md Uninstall Sysinternals Sysmon for Defense Evasion MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md ## Atomic Test #21 - Uninstall Crowdstrike Falcon on Windows MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md Uninstall Crowdstrike Falcon. If the WindowsSensor.exe path is not provided as an argument we need to search for it. Since the executable is located in a folder named with a random guid we need to identify it before invoking the uninstaller. MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md if (Test-Path “#{falcond_path}”) {. “#{falcond_path}” /repair /uninstall /quiet } else { Get-ChildItem -Path “C:\ProgramData\Package Cache” -Include “WindowsSensor.exe” -Recurse | % { $sig=$(Get-AuthenticodeSignature -FilePath $.FullName); if ($sig.Status -eq “Valid” -and $sig.SignerCertificate.DnsNameList -eq “CrowdStrike, Inc.”) { . “$” /repair /uninstall /quiet; break;} }} MIT License. © 2018 Red Canary
atomic-red-team T1562.001.md DISM is used to enumerate, install, uninstall, configure, and update features and packages in Windows images. MIT License. © 2018 Red Canary
signature-base apt_eqgrp.yar $x4 = “%s version %s already has persistence installed. If you want to uninstall,” fullword ascii CC BY-NC 4.0
signature-base apt_op_cloudhopper.yar $s2 = “rundll32.exe "%s", UnInstall /update %s” fullword wide CC BY-NC 4.0
signature-base crime_buzus_softpulse.yar $s4 = “CurrentVersion\Uninstall\avast” fullword wide CC BY-NC 4.0
signature-base gen_rats_malwareconfig.yar $a7 = “Uninstall.jarPK” CC BY-NC 4.0
signature-base thor-hacktools.yar $a = “Unable to uninstall the fgexec service” CC BY-NC 4.0
signature-base thor-webshells.yar $s3 = “%s -Uninstall –>To Uninstall The Service” CC BY-NC 4.0
signature-base thor-webshells.yar $s6 = “Can’t uninstall,maybe the backdoor is not installed or,the Password you INPUT is” CC BY-NC 4.0
signature-base thor_inverse_matches.yar and not filename matches /uninstall/ CC BY-NC 4.0

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