Locator.exe

  • File Path: C:\WINDOWS\system32\Locator.exe
  • Description: Rpc Locator

Hashes

Type Hash
MD5 A089120B99842F0A3CE8AE586A31BD56
SHA1 B799CEAA378F6BC09776EB48D9B4324B13681923
SHA256 CDFAA0429D8EF28E7011CFEB00C8CB08F63A4AF53A1FA6D41D23F86D85D80CA5
SHA384 F59B2348C63E37CE7F713566A5EFBEC114B36D1DBD25408081C8B3905F187EED322411FC80CB1963E114F07204AC1283
SHA512 F7E42E80CD9796E95FCF6B8A2B1EA5521CABF59B0152D96F6F80DA4D588E1CCD4722072D630345B05EC9DA614037FDC349B3E3077BD0C22D3D86DD678B84163D
SSDEEP 192:RZJX2saUpBw15IDs0sCJdvnJhJ4T1S+OGDrsa1q18oDDoGed1mDSWllW:jjy3u5JdvJ+SlGrpo1ZDSmDSWllW

Signature

  • Status: Signature verified.
  • Serial: 3300000266BD1580EFA75CD6D3000000000266
  • Thumbprint: A4341B9FD50FB9964283220A36A1EF6F6FAA7840
  • Issuer: CN=Microsoft Windows Production PCA 2011, O=Microsoft Corporation, L=Redmond, S=Washington, C=US
  • Subject: CN=Microsoft Windows, O=Microsoft Corporation, L=Redmond, S=Washington, C=US

File Metadata

  • Original Filename: locator.exe.mui
  • Product Name: Microsoft Windows Operating System
  • Company Name: Microsoft Corporation
  • File Version: 10.0.18362.1 (WinBuild.160101.0800)
  • Product Version: 10.0.18362.1
  • Language: English (United States)
  • Legal Copyright: Microsoft Corporation. All rights reserved.

File Similarity (ssdeep match)

File Score
C:\Windows\system32\Locator.exe 66
C:\Windows\system32\Locator.exe 43

Possible Misuse

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

Source Source File Example License
malware-ioc oceanlotus-rtf_ocx_campaigns.misp.event.json "description": "Regsvr32.exe is a command-line program used to register and unregister object linking and embedding controls, including dynamic link libraries (DLLs), on Windows systems. Regsvr32.exe can be used to execute arbitrary binaries. (Citation: Microsoft Regsvr32)\n\nAdversaries may take advantage of this functionality to proxy execution of code to avoid triggering security tools that may not monitor execution of, and modules loaded by, the regsvr32.exe process because of whitelists or false positives from Windows using regsvr32.exe for normal operations. Regsvr32.exe is also a Microsoft signed binary.\n\nRegsvr32.exe can also be used to specifically bypass process whitelisting using functionality to load COM scriptlets to execute DLLs under user permissions. Since regsvr32.exe is network and proxy aware, the scripts can be loaded by passing a uniform resource locator (URL) to file on an external Web server as an argument during invocation. This method makes no changes to the Registry as the COM object is not actually registered, only executed. (Citation: SubTee Regsvr32 Whitelisting Bypass) This variation of the technique is often referred to as a \"Squiblydoo\" attack and has been used in campaigns targeting governments. (Citation: Carbon Black Squiblydoo Apr 2016) (Citation: FireEye Regsvr32 Targeting Mongolian Gov)\n\nRegsvr32.exe can also be leveraged to register a COM Object used to establish Persistence via Component Object Model Hijacking. (Citation: Carbon Black Squiblydoo Apr 2016)\n\nDetection: Use process monitoring to monitor the execution and arguments of regsvr32.exe. Compare recent invocations of regsvr32.exe with prior history of known good arguments and loaded files to determine anomalous and potentially adversarial activity. Command arguments used before and after the regsvr32.exe invocation may also be useful in determining the origin and purpose of the script or DLL being loaded. (Citation: Carbon Black Squiblydoo Apr 2016)\n\nPlatforms: Windows\n\nData Sources: Loaded DLLs, Process monitoring, Process command-line parameters, Windows Registry\n\nDefense Bypassed: Process whitelisting, Anti-virus\n\nPermissions Required: User, Administrator\n\nRemote Support: No\n\nContributors: Casey Smith", © ESET 2014-2018
atomic-red-team T1218.010.md Malicious usage of Regsvr32.exe may avoid triggering security tools that may not monitor execution of, and modules loaded by, the regsvr32.exe process because of allowlists or false positives from Windows using regsvr32.exe for normal operations. Regsvr32.exe can also be used to specifically bypass application control using functionality to load COM scriptlets to execute DLLs under user permissions. Since Regsvr32.exe is network and proxy aware, the scripts can be loaded by passing a uniform resource locator (URL) to file on an external Web server as an argument during invocation. This method makes no changes to the Registry as the COM object is not actually registered, only executed. (Citation: LOLBAS Regsvr32) This variation of the technique is often referred to as a “Squiblydoo” attack and has been used in campaigns targeting governments. (Citation: Carbon Black Squiblydoo Apr 2016) (Citation: FireEye Regsvr32 Targeting Mongolian Gov) MIT License. © 2018 Red Canary
signature-base apt_project_sauron_extras.yar $s4 = “Network Configuration Locator” fullword wide CC BY-NC 4.0

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