Steam_api64.dll Trojan Agent Analysis

Updated 18 hours ago

Checked by Malware Check

steam_api64.dll

Technical Analysis

File Name	steam_api64.dll
File Type	PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Scanner Version	1.0.250.174
Database Version	2026-07-29 16:00:33 UTC

⚠

Trojan.Win64.Agent.cl

Malware family: Agent

Trojan Agent malware disguises itself as legitimate software while performing unauthorized activities including data theft and providing remote system access to threat actors.

N/A

Detection Rate

11,411,880

File Size (bytes)

2026-07-29

Analysis Date

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File Identification

Hash Type	Value	Action
MD5	2c51a45503a90e6857eabe5fbd5ecfff
SHA1	10bcb65d2629946ac956735dafe409ab494e5a4b
SHA256	0d987f4da207e4d9a6d63d90d40b0edab02202588b97aa4426cdf1d20d577558
SHA512	92ecec8890f7cdc0468c197418b77bd6b45d22bac26f27594282019cccfb72707eb8a1619a21e82ffdcff470465580e8782a2cbebecb4626588e184d74c5975a
ImpHash	d864199ba448383db82924d32a4f9f70

PE Analysis

Basic Information

▼

Image Base	`0x180000000`
Entry Point	`0x180766cec`
Compilation Time	2026-05-16 17:12:46
Checksum	0x00ae24da (Actual: 0x00ae24da)
OS Version	6.0
PEiD Signatures	`PE32+ executable (DLL) (GUI) x86-64, for MS Windows`
Digital Signature	Chain verification from C=UK, O=GSE, OU=GSE, CN=GSE (serial:354676390036624451709979826381829733243474609784, sha1:38a238ec4cdcf20396bdad8800ea95f46a6d99f4) failed: The X.509 certificate provided is self-signed - "Common Name: GSE, Organizational Unit: GSE, Organization: GSE, Country: UK"
Imports	13 libraries
Exports	1265 functions
Resources	4 Resources
Sections	7 Sections

Version Information

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LegalCopyright	Copyright (C) 2007
InternalName	GSE Client API (win64)
FileVersion	08.33.09.23
CompanyName	GSE
ProductVersion	01.00.00.01
FileDescription	GSE Client API
Source Control ID	8330923
OriginalFilename	steam_api.dll
ProductName	GSE Client API
Translation	0x0409 0x04b0
CompanyName	GSE
FileDescription	GSE Client API
FileVersion	1, 0, 0, 1
InternalName	GSE Client API
LegalCopyright	Copyright (C) 2007
OriginalFilename	steam_api.dll
ProductName	GSE Client API
ProductVersion	1, 0, 0, 1
Translation	0x0409 0x04b0

PE Sections

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Name	Virtual Address	Virtual Size	Raw Size	Entropy	Characteristics	MD5
`.text`	`0x00001000`	8,239,644 bytes	8,240,128 bytes	5.92 (Normal)	`IMAGE_SCN_CNT_CODE\|IMAGE_SCN_MEM_EXECUTE\|IMAGE_SCN_MEM_READ`	`9C448B51331892AD99F658A86EA05729`
`.rdata`	`0x007dd000`	2,189,090 bytes	2,189,312 bytes	5.34 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`EABC20317FBACE93B9DE1042053015A6`
`.data`	`0x009f4000`	581,488 bytes	522,240 bytes	5.07 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ\|IMAGE_SCN_MEM_WRITE`	`63805E964D6B36F30216943B4FD1AF50`
`.pdata`	`0x00a82000`	400,296 bytes	400,384 bytes	6.39 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`DD7BDE47177348818EA75C5BE97129BC`
`.fptable`	`0x00ae4000`	256 bytes	512 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ\|IMAGE_SCN_MEM_WRITE`	`BF619EAC0CDF3F68D496EA9344137E8B`
`.rsrc`	`0x00ae5000`	2,216 bytes	2,560 bytes	3.56 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`FBC3A238826222593A46C7AE698033F9`
`.reloc`	`0x00ae6000`	53,080 bytes	53,248 bytes	5.46 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_DISCARDABLE\|IMAGE_SCN_MEM_READ`	`9C752949924D5BC6136432CFC829FAB2`

Resource Analysis

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Total Resources: 4 (1,904 bytes)

Resource Type	Count	Total Size	Percentage
SCID	1	7 bytes	0.4%
RT_VERSION	2	1,516 bytes	79.6%
RT_MANIFEST	1	381 bytes	20%

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

Chain verification from C=UK, O=GSE, OU=GSE, CN=GSE (serial:354676390036624451709979826381829733243474609784, sha1:38a238ec4cdcf20396bdad8800ea95f46a6d99f4) failed: The X.509 certificate provided is self-signed - "Common Name: GSE, Organizational Unit: GSE, Organization: GSE, Country: UK"

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

Trojan.Win64.Agent.cl Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win64.Agent.cl without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

1
Get Gridinsoft Anti-Malware — it's a quick 2 MB download that won't slow down your PC.
2
Run the installer gsam-en-install.exe. The setup takes about 2 minutes and doesn't require a restart.
3
The app launches right after installation. You'll see the main dashboard with the scan button front and center.
4
Hit "Standard Scan" — this checks all the spots where malware typically hides: temp folders, browser data, startup programs, and system directories.
5
Once the scan finds this threat, click "Clean Now". The removal usually happens instantly, though some stubborn infections may need a reboot.
6
If you see a restart prompt, go ahead and reboot. This clears any malware that was running in memory and ensures your system starts fresh.

Important: Before You Start

Quick tip: unplug from the internet before scanning. Some malware phones home for instructions or downloads extra payloads when it senses trouble. If the infection is severe, boot into Safe Mode first — it limits what can run and makes cleanup easier.

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