Mang kapa mang ea lekileng ho tsamaisa mochini o sebetsang marung o tseba hantle hore boema-kepe bo tloaelehileng ba RDP, haeba bo siuoa bo bulehile, bo tla hlaseloa hang-hang ke maqhubu a matla a matla a password a tsoang ho liaterese tse fapaneng tsa IP ho pota lefatše.
Sehloohong sena ke tla bontša mokhoa oa ho U ka lokisa karabelo ea othomathike ho password brute force ka ho eketsa molao o mocha ho firewall. Intrust ke bakeng sa ho bokella, ho sekaseka le ho boloka data e sa hlophisoang, e seng e na le makholo a litloaelo tse boletsoeng esale pele mefuteng e fapaneng ea litlhaselo.
Ho Quest InTrust o ka hlophisa liketso tsa ho arabela ha molao o hlahisoa. Ho tsoa ho moemeli oa pokello ea li-log, InTrust e fumana molaetsa mabapi le teko ea tumello e sa atleheng setsing sa mosebetsi kapa seva. Ho hlophisa tlatsetso ea liaterese tse ncha tsa IP ho firewall, o hloka ho kopitsa molao o seng o le teng oa ho fumana tumello tse ngata tse hlolehileng ebe o bula kopi ea eona bakeng sa ho e hlophisa:
Liketsahalo ho li-logs tsa Windows li sebelisa ntho e bitsoang InsertionString. (ena ke mokhoa o sa atleheng oa ho kena tsamaisong) 'me u tla bona hore masimo ao re a thahasellang a bolokiloe ho InsertionString14 (Lebitso la Sebaka sa Mosebetsi) le InsertionString20 (Aterese ea Mohloli oa Mohloli). Ha u hlasela ho tsoa Inthaneteng, sebaka sa Lebitso la Mosebetsi se ka etsahala haholo. ha e na letho, kahoo sebaka sena se bohlokoa ho nka sebaka sa boleng ba Aterese ea Network Source.
Sena ke seo temana ea ketsahalo 4625 e shebahalang ka sona:
An account failed to log on.
Subject:
Security ID: S-1-5-21-1135140816-2109348461-2107143693-500
Account Name: ALebovsky
Account Domain: LOGISTICS
Logon ID: 0x2a88a
Logon Type: 2
Account For Which Logon Failed:
Security ID: S-1-0-0
Account Name: Paul
Account Domain: LOGISTICS
Failure Information:
Failure Reason: Account locked out.
Status: 0xc0000234
Sub Status: 0x0
Process Information:
Caller Process ID: 0x3f8
Caller Process Name: C:WindowsSystem32svchost.exe
Network Information:
Workstation Name: DCC1
Source Network Address: ::1
Source Port: 0
Detailed Authentication Information:
Logon Process: seclogo
Authentication Package: Negotiate
Transited Services: -
Package Name (NTLM only): -
Key Length: 0
This event is generated when a logon request fails. It is generated on the computer where access was attempted.
The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).
The Process Information fields indicate which account and process on the system requested the logon.
The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.
Ho feta moo, re tla eketsa boleng ba Aterese ea Mohloli oa Mohloli ho mongolo oa ketsahalo.
Ebe o hloka ho kenya script e tla thibela aterese ea IP ho Windows Firewall. Ka tlaase mona ke mohlala o ka sebelisoang bakeng sa sena.
Script bakeng sa ho theha firewall
param(
[Parameter(Mandatory = $true)]
[ValidateNotNullOrEmpty()]
[string]
$SourceAddress
)
$SourceAddress = $SourceAddress.Trim()
$ErrorActionPreference = 'Stop'
$ruleName = 'Quest-InTrust-Block-Failed-Logons'
$ruleDisplayName = 'Quest InTrust: Blocks IP addresses from failed logons'
function Get-BlockedIps {
(Get-NetFirewallRule -Name $ruleName -ErrorAction SilentlyContinue | get-netfirewalladdressfilter).RemoteAddress
}
$blockedIps = Get-BlockedIps
$allIps = [array]$SourceAddress + [array]$blockedIps | Select-Object -Unique | Sort-Object
if (Get-NetFirewallRule -Name $ruleName -ErrorAction SilentlyContinue) {
Set-NetFirewallRule -Name $ruleName -RemoteAddress $allIps
} else {
New-NetFirewallRule -Name $ruleName -DisplayName $ruleDisplayName -Direction Inbound -Action Block -RemoteAddress $allIps
}
Hona joale o ka fetola lebitso la molao le tlhaloso ho qoba pherekano hamorao.
Hona joale o hloka ho kenyelletsa mongolo ona e le ketso ea karabelo ho molao, lumella molao, 'me u netefatse hore molao o lumellanang o lumelloa leanong la nako ea sebele. Moemeli o tlameha ho fuoa monyetla oa ho etsa mongolo oa karabo 'me a be le paramethara e nepahetseng e boletsoeng.
Kamora hore litlhophiso li phetheloe, palo ea tumello e sa atleheng e fokotsehile ka 80%. Phaello? E kholo hakaakang!
Ka linako tse ling keketseho e nyenyane e etsahala hape, empa sena se bakoa ke ho hlaha ha mehloli e mecha ea tlhaselo. Joale ntho e 'ngoe le e' ngoe e qala ho fokotseha hape.
Nakong ea beke ea mosebetsi, liaterese tsa IP tse 66 li ile tsa kenngoa molaong oa firewall.
Ka tlase ke tafole e nang le mabitso a basebelisi a 10 a neng a sebelisoa bakeng sa liteko tsa tumello.
Lebitso la mosebedisi
Palo ea
Ka liphesente
mookameli
1220235
40.78
admin
672109
22.46
user want-meet.ru
219870
7.35
contoso
126088
4.21
contoso.com
73048
2.44
mookameli
55319
1.85
seva
39403
1.32
sgazlabdc01.contoso.com
32177
1.08
motsamaisi
32377
1.08
sgazlabdc01
31259
1.04
Re bolelle maikutlong hore na u arabela joang litšokelong tsa ts'ireletso ea litaba. U sebelisa sistimi efe, 'me e bonolo hakae?
Haeba u thahasella ho bona InTrust e sebetsa, ka foromo ea maikutlo sebakeng sa rona sa marang-rang kapa u ngolle molaetsa oa hau.
Bala lingoliloeng tsa rona tse ling mabapi le ts'ireletso ea tlhahisoleseling:
(sengoloa se tsebahalang)
Source: www.habr.com