smss.exe
- File Path:
C:\WINDOWS\system32\smss.exe - Description: Windows Session Manager
Hashes
| Type | Hash |
|---|---|
| MD5 | 858E3DA84C5389952E1AD3701E410F61 |
| SHA1 | 9F768C0D0774407564F098145B64565CFFDD8DC4 |
| SHA256 | 5F48638E3397204C2C63D7B76D025D62302D0E45FC5055C0A692B0BBC7E6B337 |
| SHA384 | CDF1B503FC281B7D5160DB64DAC05BEC3AD5111F7FD4031427DEB601386334C21D7A93889BE1276BF68C52F6D71D2AC3 |
| SHA512 | 729FBF4FEE059706EC5E77DD6C3326840E0BC255B7C50C1F77AD9DAC5A2B9579D91264DC5C2252C39F6A2D92EC60E1FCAB34B7ACCE44AF9816BBC1F7B7521891 |
| SSDEEP | 3072:GQPiKMyrlh1jouZDDw5U0KZDHbVBpHSKbkdjv2Ylt:5iKMy9jfnpyxzR |
Signature
- Status: Signature verified.
- Serial:
330000023241FB59996DCC4DFF000000000232 - Thumbprint:
FF82BC38E1DA5E596DF374C53E3617F7EDA36B06 - 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: smss.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.
Possible Misuse
The following table contains possible examples of smss.exe being misused. While smss.exe is not inherently malicious, its legitimate functionality can be abused for malicious purposes.
| Source | Source File | Example | License |
|---|---|---|---|
| sigma | file_event_win_creation_system_file.yml | - '\smss.exe' |
DRL 1.0 |
| sigma | proc_creation_win_abusing_debug_privilege.yml | - '\smss.exe' |
DRL 1.0 |
| sigma | proc_creation_win_susp_use_of_sqltoolsps_bin.yml | ParentImage\|endswith: '\smss.exe' |
DRL 1.0 |
| sigma | proc_creation_win_susp_use_of_sqltoolsps_bin.yml | - Direct PS command execution through SQLToolsPS.exe is uncommon, childprocess sqltoolsps.exe spawned by smss.exe is a legitimate action. |
DRL 1.0 |
| sigma | proc_creation_win_system_exe_anomaly.yml | - '\smss.exe' |
DRL 1.0 |
| malware-ioc | nukesped_lazarus | .smss.exe``{:.highlight .language-cmhg} |
© ESET 2014-2018 |
| signature-base | generic_anomalies.yar | description = “Detects uncommon file size of smss.exe” | CC BY-NC 4.0 |
| signature-base | generic_anomalies.yar | and filename == “smss.exe” | CC BY-NC 4.0 |
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