| File name: | Based_DOS.bat |
| Full analysis: | https://app.any.run/tasks/bbeede3a-9b52-4006-84b8-ac711b6b4598 |
| Verdict: | Malicious activity |
| Threats: | Quasar is a very popular RAT in the world thanks to its code being available in open-source. This malware can be used to control the victim’s computer remotely. |
| Analysis date: | May 24, 2026, 04:21:46 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | text/x-msdos-batch |
| File info: | DOS batch file, ASCII text, with very long lines (791), with CRLF line terminators |
| MD5: | CD03DFB805081A99825372225936C2B1 |
| SHA1: | A021AC5F412C589CEE04B5A0C16337FFEA0C92AF |
| SHA256: | 8F74980F615797CA366B4EA316A3609E5DAFFC70A98A916C384B3F4AF9C841A4 |
| SSDEEP: | 49152:mFHcUhYUh95ch2UgH9hKrh95ciFi5cPnW7nWSuPWZnDcSWdQWSuPkA7jeHje6G72:W |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 572 | C:\WINDOWS\system32\cmd.exe /c ""C:\Users\admin\Desktop\Based_DOS.bat" " | C:\Windows\System32\cmd.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Command Processor Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
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| 736 | powershell.exe -noprofile -executionpolicy bypass -EncodedCommand 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 | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1152 | ping -n 2 127.0.0.1 | C:\Windows\System32\PING.EXE | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: TCP/IP Ping Command Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
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| 1280 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | attrib.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
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| 1284 | "C:\WINDOWS\system32\attrib.exe" +H +S "C:\Users\admin\AppData\Roaming\$sxr-seroxen1\$sxr-cmd.bat" | C:\Windows\System32\attrib.exe | — | Based_DOS.bat.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Attribute Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1864 | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\admin\AppData\Local\Temp\RES918D.tmp" "c:\Users\admin\AppData\Local\Temp\CSCFDB61BA54244E9AAC9216BCCB68E87A.TMP" | C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe | — | csc.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Microsoft® Resource File To COFF Object Conversion Utility Exit code: 0 Version: 14.32.31326.0 Modules
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| 2664 | "C:\WINDOWS\system32\attrib.exe" +H +S "C:\Users\admin\AppData\Roaming\$sxr-seroxen1" | C:\Windows\System32\attrib.exe | — | Based_DOS.bat.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Attribute Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
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| 2684 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | attrib.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2728 | "C:\WINDOWS\system32\attrib.exe" +H +S "C:\Users\admin\AppData\Roaming\$sxr-seroxen1" | C:\Windows\System32\attrib.exe | — | Based_DOS.bat.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Attribute Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2748 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | cmd.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
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PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7840 | Based_DOS.bat.exe | C:\Users\admin\AppData\Roaming\$sxr-seroxen1\$sxr-cmd.bat | — | |
MD5:— | SHA256:— | |||
| 736 | powershell.exe | C:\Users\admin\AppData\Local\Temp\obldvk3x.0.cs | text | |
MD5:7AB717F051B03A39ECE80AEDF3F46E2A | SHA256:9E8F877C8FB1D52ABC7DD23B36543E090F9B92E65FDA1356E925C4AC23B7785E | |||
| 736 | powershell.exe | C:\Users\admin\AppData\Local\Temp\obldvk3x.cmdline | text | |
MD5:C3D9A431AD072FA47525ED13BF522680 | SHA256:0E37AAA95B76D23E43E38C6D495899CF712921963154CB156C86638E20746565 | |||
| 736 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive | binary | |
MD5:37EDB608D0050E1608ABD77DF98FE4A3 | SHA256:FE5E7D84BA90C518CBDB65F11C4D286655973E07F8835EF34403516E93897A25 | |||
| 736 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_upsb20ci.zde.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 5224 | csc.exe | C:\Users\admin\AppData\Local\Temp\obldvk3x.out | text | |
MD5:4841FF8AB358CF39ADF36F21A1B8BFD9 | SHA256:56FFCE0D74DF8F62B7B659E527CC42BD3AB7E9F11A341AC6A97C3A293F089935 | |||
| 5224 | csc.exe | C:\Users\admin\AppData\Local\Temp\obldvk3x.dll | executable | |
MD5:220FE1FE09D5332659B34191A7AA77D9 | SHA256:7C2A45D285C5229B1420BDD12CAFA3F89B0F8399F5B9D357E0C5291864E42AC4 | |||
| 736 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_433unmgr.jip.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 5800 | cvtres.exe | C:\Users\admin\AppData\Local\Temp\RES295D.tmp | binary | |
MD5:661A8A481C85A18DB8B64ED1CF73CA68 | SHA256:0D4C4BCF9241525EA3AFC2D8290FA5CC15A6DF8CA8AB6F3294D966562E921465 | |||
| 5224 | csc.exe | C:\Users\admin\AppData\Local\Temp\CSCFC46A56C64AD43F59141724EAE1867B8.TMP | binary | |
MD5:9D7BA047E8054FD5DD75FBDC1E2FD564 | SHA256:44C620E92ECD40C346E4D88315F2D5F7C257F162BC03BB70FD08E8B123915C61 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
2792 | SIHClient.exe | GET | 304 | 74.178.240.61:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | US | — | — | whitelisted |
2792 | SIHClient.exe | GET | 200 | 74.178.240.51:443 | https://fe3cr.delivery.mp.microsoft.com/clientwebservice/ping | US | — | — | whitelisted |
2792 | SIHClient.exe | GET | 200 | 74.178.240.61:443 | https://slscr.update.microsoft.com/sls/ping | US | — | — | whitelisted |
2792 | SIHClient.exe | GET | 304 | 74.178.240.61:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | US | — | — | whitelisted |
6684 | svchost.exe | GET | 200 | 23.216.77.28:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | NL | binary | 825 b | whitelisted |
2792 | SIHClient.exe | GET | 304 | 74.178.240.61:443 | https://slscr.update.microsoft.com/SLS/%7BE7A50285-D08D-499D-9FF8-180FDC2332BC%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | US | — | — | whitelisted |
— | — | POST | 500 | 128.24.231.65:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | US | xml | 512 b | whitelisted |
6684 | svchost.exe | GET | 200 | 23.52.181.212:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | US | binary | 814 b | whitelisted |
2792 | SIHClient.exe | GET | 304 | 135.232.92.137:443 | https://slscr.update.microsoft.com/SLS/%7B522D76A4-93E1-47F8-B8CE-07C937AD1A1E%7D/x64/10.0.19045.4046/0?CH=686&L=en-US&P=&PT=0x30&WUA=10.0.19041.3996&MK=DELL&MD=DELL | US | — | — | — |
7160 | slui.exe | POST | 500 | 48.192.1.65:443 | https://activation-v2.sls.microsoft.com/SLActivateProduct/SLActivateProduct.asmx?configextension=Retail | US | xml | 512 b | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | Not routed | — | whitelisted |
— | — | 48.209.138.168:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
8124 | slui.exe | 48.192.1.65:443 | activation-v2.sls.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
— | — | 92.123.104.34:443 | www.bing.com | AKAMAI-ASN1 | NL | whitelisted |
4 | System | 192.168.100.255:138 | — | Not routed | — | whitelisted |
6684 | svchost.exe | 23.216.77.28:80 | crl.microsoft.com | AKAMAI-ASN1 | NL | whitelisted |
6684 | svchost.exe | 23.52.181.212:80 | www.microsoft.com | AKAMAI-AS | US | whitelisted |
5276 | MoUsoCoreWorker.exe | 48.209.138.168:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
6684 | svchost.exe | 48.209.138.168:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
5208 | svchost.exe | 48.209.138.168:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | US | whitelisted |
Domain | IP | Reputation |
|---|---|---|
activation-v2.sls.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
settings-win.data.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |
portbuddy.dev |
| unknown |