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The tier0_s.dll (tier0_s Dynamic Link Library (buildbot_winslave01_steam_rel_client_win32@winslave01) (buildbot_winslave01_steam_rel_client_win32@winslave01)) File Analysis

Updated 3 months ago
Checked by Malware Check
tier0_s.dll

Technical Analysis

File Name tier0_s.dll
File Type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.226.174
Database Version 2025-09-26 23:00:20 UTC
✓

Clean File

No threats detected by our scanner

0%
Detection Rate
286,304
File Size (bytes)
2025-09-26
Analysis Date

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File Identification

Hash Type Value Action
MD5
4aa99686d76bd6285ccdbe0ebcbc67ed
SHA1
8e37b9d38ffc95da04400a0c78a9216317a75dd3
SHA256
14a5d07c261715f2cc9ebae77c7820bbe56ac204ff82a3b60e014af8a076effc
SHA512
1eaba3469eb59a7d450cbb7240f3e190f3409886f46844a16aa854276876b04a05f5451991053df059daaaf6d7cf5795b15dea7dbe4ae8ae0a9862dfd9b00905
ImpHash
47737e4d275809cf95c5dcd7570d304b

PE Analysis

Basic Information

▼
Image Base 0x3f000000
Entry Point 0x3f01f5d0
Compilation Time 2011-07-25 17:23:56
Checksum 0x0005327c (Actual: 0x0005327c)
OS Version 4.0
PEiD Signatures PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
PDB Path d:\buildslave\steam_rel_client_win32\build\src\tier0\Release\tier0_s.pdb
Digital Signature Chain verification from CN=Valve, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Valve, ST=Washington, C=US (serial:164773371458459290110603488100872510238, sha1:ce5ae98633be96d6244f13409492d8e77f7016ea) failed: The path could not be validated because intermediate certificate 1 expired 2019-05-20 23:59:59Z
Imports 5 libraries
WS2_32, KERNEL32, USER32, ADVAPI32, SHELL32
Exports 397 functions
Resources 4 Resources
Sections 6 Sections

Version Information

▼
LegalCopyright Copyright (C) 2007
InternalName tier0_s
FileVersion 01.14.66.23
CompanyName Valve Corporation
ProductVersion 01.00.00.01
FileDescription tier0_s Dynamic Link Library (buildbot_winslave01_steam_rel_client_win32@winslave01) (buildbot_winslave01_steam_rel_client_win32@winslave01)
Source Control ID 1146623
OriginalFilename tier0_s.dll
ProductName tier0_s Dynamic Link Library
Translation 0x0409 0x04b0
CompanyName Valve Corporation
FileDescription tier0_s Dynamic Link Library
FileVersion 1, 0, 0, 1
InternalName tier0_s
LegalCopyright Copyright (C) 2007
OriginalFilename tier0_s.dll
ProductName tier0_s Dynamic Link Library
ProductVersion 1, 0, 0, 1
Translation 0x0409 0x04b0

PE Sections

▼
Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 189,515 bytes 192,512 bytes 6.59 (Compressed) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 833BFDE115B022EA4BBE4F8AB4ED8BD1
.rdata 0x00030000 49,493 bytes 53,248 bytes 5.48 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ F6068EA6B8563A173F79FD9D6379469B
.data 0x0003d000 433,596 bytes 8,192 bytes 3.20 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE A0518950D76F40C430AB7E57F91EE6A7
.tls 0x000a7000 9 bytes 4,096 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 620F0B67A91F7F74151BC5BE745B7110
.rsrc 0x000a8000 3,248 bytes 4,096 bytes 4.02 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ AEFECE4DD3C02332B7F90400ABC713E7
.reloc 0x000a9000 16,110 bytes 16,384 bytes 5.17 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ 059CAF8B1B5FCA50A186D0DE9C7C1BC7
Entropy Analysis Alert

1 section(s) with elevated entropy (≥6.5) - possible compression

Resource Analysis

▼
Total Resources: 4 (2,941 bytes)
Resource Type Count Total Size Percentage
SCID 1 7 bytes
0.2%
RT_DIALOG 1 1,082 bytes
36.8%
RT_VERSION 2 1,852 bytes
63%

Certificate Chain Analysis

▼
Certificate Information
Product tier0_s Dynamic Link Library
Description tier0_s Dynamic Link Library (buildbot_winslave01_steam_rel_client_win32@winslave01) (buildbot_winslave01_steam_rel_client_win32@winslave01)
File Version 01.14.66.23
Original Name tier0_s.dll
Verification Status A certificate was explicitly revoked by its issuer.
Signers Valve; VeriSign Class 3 Code Signing 2009-2 CA; VeriSign Class 3 Public Primary CA
Internal Name tier0_s
Copyright Copyright (C) 2007
Certificate Chain Summary
Certificate #1 Primary
Validity Period: 1996-01-29 00:00:00 → 2028-08-01 23:59:59
Signature Algorithm: 1.2.840.113549.1.1.2
Serial Number: 70 BA E4 1D 10 D9 29 34 B6 38 CA 7B 03 CC BA BF
Valve #2 Chain
Validity Period: 2009-11-25 00:00:00 → 2012-11-23 23:59:59
Signature Algorithm: sha1RSA
Serial Number: 7B F6 32 6F 70 CB EC 34 0B F2 D1 86 8F E6 5B 1E
VeriSign Class 3 Code Signing 2009-2 CA #3 Chain
Validity Period: 2009-05-21 00:00:00 → 2019-05-20 23:59:59
Signature Algorithm: sha1RSA
Serial Number: 65 52 26 E1 B2 2E 18 E1 59 0F 29 85 AC 22 E7 5C

✓ This file has been digitally signed and the certificate chain has been verified

  • The signature ensures file integrity and authenticity from the publisher
  • Timestamping proves when the signature was applied
Certificate Verification Status

Chain verification from CN=Valve, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Valve, ST=Washington, C=US (serial:164773371458459290110603488100872510238, sha1:ce5ae98633be96d6244f13409492d8e77f7016ea) failed: The path could not be validated because intermediate certificate 1 expired 2019-05-20 23:59:59Z

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Remember: This is Result of Online Virus Scanner

Gridinsoft Anti-Malware has a much more powerful virus scanning engine. We recommend using it for a more precise diagnosis of infected systems. This brief guide will help you install our flagship product for more accurate diagnostics:

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Keep Your System Protected

This file appears clean, but regular security maintenance is important

  1. Regular Scans: Run weekly system scans to detect new threats before they can cause damage.
  2. Keep Software Updated: Ensure your operating system and all applications have the latest security patches.
  3. Safe Browsing: Avoid suspicious websites and never download software from untrusted sources.
  4. Email Security: Be cautious with email attachments and links, even from known contacts.
Proactive Protection
This file passed all security checks, but stay vigilant. New malware variants appear daily that can evade detection. Always verify files come from official sources and check digital signatures when available.

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