Steam api dll Trojan Downloader File Malware Analysis: 5da698830ce02225ec7bcbcdb6e29ecc
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Steam_api.dll Trojan Downloader Analysis

Updated 3 days ago
Checked by Malware Check
steam_api.dll

Technical Analysis

File Name steam_api.dll
File Type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.224.174
Database Version 2025-09-11 17:00:47 UTC
⚠

Trojan.Win32.Downloader.oa!s5

Malware family: Downloader

Downloader Trojans specialize in retrieving and installing additional malware payloads. Unlike comprehensive malware, they focus specifically on payload delivery rather than direct system damage.
N/A
Detection Rate
872,448
File Size (bytes)
2025-09-11
Analysis Date

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File Identification

Hash Type Value Action
MD5
5da698830ce02225ec7bcbcdb6e29ecc
SHA1
e114b24438ab8fdacc7dcc8dc1d2e38d1e0bb763
SHA256
71ceafbb73fe5b8f0c591295931fc5c5588db5bca2a859da7aee4f226235b046
SHA512
0a85873ff144cd7546de938a26f50dbf191133e6fab23c015cbfdc010c790440eaa53a703c68d5c6d28feb4803ef812a61dcfd4b0563300c41d2d13e9b656bd8
ImpHash
b28807e91e42006be54adb629a5c4174

PE Analysis

Basic Information

▼
Image Base 0x10000000
Entry Point 0x10c9fe22
Compilation Time 2021-04-02 09:30:13
Checksum 0x000d82d7 (Actual: 0x000d82d7)
OS Version 5.1
PEiD Signatures PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Digital Signature No valid SignedData structure was found.
Imports 10 libraries
KERNEL32, USER32, ADVAPI32, SHELL32, ole32, WS2_32, WINHTTP, SHLWAPI, PSAPI, bcrypt
Exports 1422 functions
Resources 2 Resources
Sections 7 Sections

Version Information

▼
Comments Valve SpecialBuild
CompanyName Valve Corporation
FileDescription Steam Client API
FileVersion 06.28.18.86
InternalName Steam Client API (buildbot_steam-relclient-win32-builder_steam_rel_client_win32@steam-relclient-win32-builder)
LegalCopyright Copyright (C) 2007
OriginalFilename steam_api.dll
ProductName Steam Client API
ProductVersion 01.00.00.01
Source Control ID 6281886
Translation 0x0804 0x04b0

PE Sections

▼
Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 402,376 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.rdata 0x00064000 177,659 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.data 0x00090000 11,367,300 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.UPX0 0x00b68000 700,032 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.UPX1 0x00c13000 868,576 bytes 868,864 bytes 7.96 (Packed/Encrypted) IMAGE_SCN_CNT_CODE|IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE F2837283482F6FB7FF237CA57BD66F37
.reloc 0x00ce8000 256 bytes 512 bytes 2.96 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 24C04BCC4080F33EF6EAC24A829A6B87
.rsrc 0x00ce9000 1,578 bytes 2,048 bytes 3.37 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ E6404E4D9F0E19932E7A5EA6BBC0739F
Entropy Analysis Alert

1 section(s) with high entropy (≥7.5) detected - possible packing/encryption

Resource Analysis

▼
Total Resources: 2 (1,418 bytes)
Resource Type Count Total Size Percentage
RT_VERSION 1 1,072 bytes
75.6%
RT_MANIFEST 1 346 bytes
24.4%

Certificate Chain Analysis

▼
No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

No valid SignedData structure was found.

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

Trojan.Win32.Downloader.oa!s5 Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win32.Downloader.oa!s5 without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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