Trojan.Win32.PRIVATELOADER.AA
Windows
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It connects to certain websites to send and receive information.
It drops files as ransom note.
TECHNICAL DETAILS
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan drops the following files:
- %User Profile%\Pictures\Minor Policy{random characters}.exe
- These {Random Character} files are malicious with the following detections:
- TrojanSpy.Win32.PRIVATELOADER.YXCISZ
- TROJ_GEN.R03BC0PH122
- Ransom.Win32.STOP.YPCIT
- TrojanSpy.Win32.PRIVATELOADER.YXCITZ
- TrojanSpy.Win32.REDLINE.YXCITZ
- These {Random Character} files are malicious with the following detections:
- %Program Files%\PowerControl\PowerControl_Svc.exe
- %ProgramData%\DNTException\node.exe
- %Application Data%\Microsoft\Network\mstsca.exe\
- %System%\control.exe
- %User Temp%\M3A58X5S.cPl
- %User Temp%\IXP000.TMP\exdtrvxyznt.dat.5
- %User Temp%\IXP000.TMP\exdtrvxyznt.dat.6
- %User Temp%\IXP000.TMP\bbvdvmu.bat
- %User Temp%\IXP000.TMP\lhcrpixxvj.dat
- %User Temp%\IXP000.TMP\conhost.exe
- %User Profile%\Documents\KfSXhxpdcitP_l6.palma
- %AppDataLocal%\bowsakkdestx.txt
- %System Root%\SystemID\PersonalID.txt
- %ProgramData%\DNTException\node.lib
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
It adds the following processes:
- %User Profile%\Pictures\Minor Policy{random characters}.exe
- schtasks /create /f /RU "{User Name}" /tr "%Program Files%\PowerControl\PowerControl_Svc.exe" /tn "PowerControl HR" /sc HOURLY /rl HIGHEST
- schtasks /create /f /RU "{User Name}" /tr "%Program Files%\PowerControl\PowerControl_Svc.exe" /tn "PowerControl LG" /sc ONLOGON /rl HIGHEST
- %User Profile%\Pictures\Minor Policy{random characters}.exe" --Admin IsNotAutoStart IsNotTask
- cmd.exe /d /c bbvdvmu.bat 45581428331
- %User Profile%\AppData\Local{GUID}\build2.exe
- %User Profile%\AppData\Local{GUID}\build3.exe
- /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "%Application Data%\Microsoft\Network\mstsca.exe
- cmd.exe /c dir C:\
- cacls.exe %ProgramData%\DNTException /t /e /c /g Everyone:F
- icacls.exe %ProgramData%\DNTException /t /c /grant *S-1-1-0:(f)
- attrib.exe +H %ProgramData%\DNTException
- attrib.exe +H %ProgramData%\DNTException\node.exe
- "%System%\control.exe" "%User Temp%\M3A58X5S.cPl"
- "%System%\rundll32.exe" Shell32.dll,Control_RunDLL "%User Temp%\M3A58X5S.cPl"
- node.exe node.lib 45581428331 3562870356
- conhost.exe lhcrpixxvj.dat 45581428331
- %Windows%\Microsoft.NET\Framework v4.0.30319\RegAsm.exe
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name} on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %ProgramData% is a version of the Program Files folder where any user on a multi-user computer can make changes to programs. This contains application data for all users. This is usually C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit), or C:\Documents and Settings\All Users on Windows Server 2003(32-bit), 2000(32-bit) and XP.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Other Details
This Trojan connects to the following URL(s) to get the affected system's IP address:
- {BLOCKED}o.io/widget
It connects to the following website to send and receive information:
- {BLOCKED}.{BLOCKED}.226.201
It does the following:
- Gathers Information:
- Wallets:
- atomic
- Atomic Wallet
- Electrum
- Exodus
- MultiDoge
- Monero
- binancechain
- Binance
- Metamask
- Browser activities on the following websites:
- instantbitex.com
- tokenize.exchange
- southxchange.com
- gdax.com
- gemini.com
- itbit.com
- lbank.info
- localtrade.cc
- lykke.com
- leoxchange.com
- kiwi-coin.com
- koinim.com
- kuna.io
- koineks.com
- koinex.in
- jubi.com
- bitkonan.com
- luno.com
- cex.io
- korbit.co.kr
- coinone.co.kr
- kucoin.com
- poloniex.com
- bitflyer.com
- yobit.io
- exmo.com
- gate.io
- bittrex.com
- payoneer.com
- bitstamp.net
- kraken.com
- coinbene.com
- bitfinex.com
- hitbtc.com
- okex.com
- huobi.com
- binance.com
- zb.com
- yobit.net
- sorare.com
- finexbox.com
- simex.global
- fatbtc.com
- fcoin.com
- coinz.com
- shortex.net
- ftx.com
- bithumb.com
- oceanex.pro
- omgfin.com
- coindeal.com
- coinall.com
- bilaxy.com
- mxc.com
- coinbit.co.kr
- cashierest.com
- cointiger.com
- cryptology.com
- coinmex.com
- btcbox.cojp
- fexpro.net
- tokens.net
- gdac.com
- jex.com
- chaoex.com
- exmarkets.com
- btcnext.io
- trade.io
- cpdax.com
- satowallet.com
- btcexa.com
- dobitrade.com
- bitker.com
- coinfinit.com
- atomars.com
- coinzo.com
- citex.co.kr
- bitopro.com
- bx.in.th
- etherflyer.com
- maicoin.com
- coineal.com
- vindax.com
- catex.io
- gopax.co.kr
- bitforex.com
- magnr.com
- exir.tech
- exir.io
- spectrocoin.com
- advcash.com
- cryptonator.com
- cryptopia.co.nz
- bitmart.com
- bitbank.cc
- bitmax.io
- coinome.com
- tidex.com
- uphold.com
- bitkub.com
- tradeogre.com
- volabit.com
- mercatox.com
- livecoin.net
- coinbase.com
- coinexchange.io
- coincorner.com
- coinegg.com
- coinfloor.co.uk
- coingather.com
- coinpit.io
- coinrail.co.kr
- coinnest.co.kr
- coingi.com
- coinmate.io
- coincheck.com
- bitstarcoin.com
- bt.cx
- btcxindia.com
- btcturk.com
- dgtmarket.com
- deribit.com
- decentrex.com
- dabtc.com
- dcex.com
- coinspot.io
- coinsquare.com
- coinsecure.in
- coinsbank.com
- bitconnect.co
- bcex.ca
- big.one
- bitbanktrade.jp
- aidosmarket.com
- abucoins.com
- 796.com
- allcoin.com
- bitso.com
- bitspark.io
- btc-alpha.com
- braziliex.com
- btcmarkets.net
- cryptofresh.com
- blockchain.info
- blockchain.com
- bitfex.trade
- bitlish.com
- bitmarket.net
- bitpanda.com
- bitonic.nl
- bitmaszyna.pl
- funpay.ru
- bitmex.com
- dcexe.com
- dcexchange.ru
- paymium.com
- paribu.com
- omnidex.io
- openledger.info
- ore.bz
- qryptos.com
- ripplefox.com
- rippex.net
- rightbtc.com
- quadrigacx.com
- quoine.com
- liquid.com
- okcoin.com
- dsx.uk
- neraex.pro
- mr.exchange
- mixcoins.com
- nevbit.com
- nzbcx.com
- mynxt.info
- nlexch.com
- nocks.com
- vwlpro.com
- vbtc.exchange
- stex.com
- tdax.com
- ezbtc.ca
- exratesme
- exx.com
- flowbtc.combr
- foxbit.combr
- gatehub.net
- coinsmarkets.com
- bitcointoyou.com
- altcointrader.co.za
- bittylicious.com
- btc-trade.com.ua
- bitsblockchain.net
- novaexchange.com
- arenabitcoin.com
- bitcointrade.com
- excambriorex.com
- satoshitango.com
- localbitcoins.com
- bittrex.zendesk.com
- coinmarketcap.com
- therocktrading.com
- btc-exchange.com
- my.dogechain.info
- independentreserve.com
- infinitycoin.exchange
- coinpayments.net
- login.blockchain.com
- wallet.uphold.com
- cryptobridge.freshdesk.com
- pancakeswap.finance
- crypto-bridge.org
- schoolsfirstfcu.org
- morganstanley.com
- bankofamerica.com
- robinhood.com
- navyfederal.org
- ally.com
- mtb.com
- 53.com
- easternbank.com
- santander.com
- marcus.com
- etrade.com
- cu.com
- usaa.com
- communityfirstcu.org
- summitcreditunion.com
- citadelbanking.com
- firstcommunity.com
- communityamerica.com
- gecreditunion.org
- joviafinancial.com
- desertfinancial.com
- iccu.comdesertfinancial.com
- wingsfinancial.com
- deltacommunitycu.com
- logixbanking.com
- aacreditunion.org
- americafirst.com
- firsttechfed.com
- suncoastcreditunion.com
- americafirst.com
- alliantcreditunion.org
- firsttechfed.com
- schoolsfirstfcu.org
- americaneagle.org
- elevationscu.com
- trumarkonline.org
- gtefinancial.org
- nuvisionfederal.com
- tvacreditunion.com
- growfinancial.org
- americanheritagecu.org
- statefarmfcu.com
- dfcufinancial.com
- simex.global
- fatbtc.com
- fcoin.com
- coin.z.com
- shortex.net
- ftx.com
- communityfirstfl.org
- csecreditunion.com
- arizonafederal.org
- credithuman.com
- langleyfcu.org
- ccu.com
- safecu.org
- towerfcu.org
- affinityfcu.com
- nymcu.org
- myeecu.org
- coastal24.com
- wsecu.org
- tcunet.com
- redwoodcu.org
- wpcu.coop
- hvfcu.org
- iccu.com
- pffcu.org
- greenstate.org
- cefcu.com
- ent.com
- psecu.com
- onpointcu.com
- imcu.com
- esl.org
- patelco.org
- teachersfcu.org
- lmcu.org
- sdccu.com
- alaskausa.org
- starone.org
- bethpagefcu.com
- ssfcu.org
- dcu.org
- macu.com
- rbfcu.org
- greendot.com
- missionfed.com
- safecu.org
- secumd.org
- golden1.com
- becu.org
- penfed.org
- ncsecu.org
- wecu.com
- gwcu.org
- bayportcu.org
- capcomfcu.org
- rfcu.com
- empowerfcu.com
- vantagewest.org
- ttcu.com
- unfcu.org
- eglinfcu.org
- andrewsfcu.org
- psfcu.com
- adviacu.org
- campuscu.com
- metrocu.org
- schools.org
- apcu.com
- sdfcu.org
- ecu.com
- chartway.com
- lgfcu.org
- jscfcu.org
- ornlfcu.com
- navigantcu.org
- msgcu.org
- pcu.org
- nusenda.org
- georgiasown.org
- eecu.org
- numericacu.com
- slfcu.org
- connexuscu.org
- ucu.org
- calcoastcu.org
- foundersfcu.com
- ascend.org
- fairwinds.org
- truliantfcu.org
- canvas.org
- robinsfcu.org
- sefcu.com
- tinkerfcu.org
- veridiancu.org
- visionsfcu.org
- midflorida.com
- kinecta.org
- landmarkcu.com
- members1st.org
- msufcu.org
- bellco.org
- bfsfcu.org
- sccu.com
- ecu.org
- uwcu.org
- traviscu.org
- chevronfcu.org
- gesa.com
- secumd.org
- servicecu.org
- vacu.org
- bcu.org
- missionfed.com
- wescom.org
- ufcu.org
- fairwinds.org
- unitedfcu.com
- apcocu.org
- unifyfcu.com
- genisyscu.org
- sfcu.org
- nasafcu.com
- applefcu.org
- kfcu.org
- gecu.com
- techcu.com
- bankofmelbourne.com.au
- regionalaustraliabank.com
- regionalaustraliabank.com.au
- ing.com.au
- imb.com.au
- stgeorge.com.au
- suncorp.com.au
- amazon.it
- amazon.ca
- amazon.de
- console.scaleway.com
- digitalocean.com
- portal.azure.com
- cloud.tencent.com
- cloud.huawei.com
- cloud.ibm.com
- ca.ovh.com
- vultr.com
- aws.amazon.com
- hetzner.com
- linode.com
- oracle.com
- rackspace.com
- phoenixnap.com
- leaseweb.com
- sso.ctl.io
- ctl.io
- paypal.com
- rbcroyalbank.com
- neofinancial.com
- bmo.com
- miningpoolhub.com
- kraken.com
- gate.io
- huobi.com.
- coinbase.com
- kucoin.com
- hitbtc.com
- crypto.com
- mercatox.com
- coins.ph
- coins.th
- poloniex.com
- bittrex.com
- bitpanda.com
- exmo.com
- dogechain.info
- luno.com
- bitkub.com
- blockchain.com
- livecoin.net
- bmo.com
- paypal.com
- bitfinex.com
- binance.com
- ascendex.com
- Wallets:
- The following behavior are executed by the following detections:
- Encryption of files:
- Ransom.Win32.STOP.YPCIT
- Gathering and Stealing of information:
- TrojanSpy.Win32.PRIVATELOADER.YXCISZ
- TrojanSpy.Win32.PRIVATELOADER.YXCITZ
- TrojanSpy.Win32.REDLINE.YXCITZ
- Encryption of files:
It adds the following scheduled tasks:
- Task Name: {Username}
Trigger: Onlogon
Action: %Program Files%\PowerControl\PowerControl_Svc.exe - Task Name: Azure-Update-Task
Trigger: Every 1 Minute
Action: %Application Data%\Microsoft\Network\mstsca.exe
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Ransomware Routine
This Trojan appends the following extension to the file name of the encrypted files:
- .aamv
It drops the following file(s) as ransom note:
- {Encrypted Directory}_readme.txt
SOLUTION
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Restart in Safe Mode
Step 4
Deleting Scheduled Tasks
The following {Task Name} - {Task to be run} listed should be used in the steps identified below:
- Task Name: Azure-Update-Task - Task to be run: %Application Data%\Microsoft\Network\mstsca.exe
- Task Name: {User Name} - Task to be run: %Program Files%\PowerControl\PowerControl_Svc.exe
For Windows 2000, Windows XP, and Windows Server 2003:
- Open the Windows Scheduled Tasks. Click Start>Programs>Accessories>
System Tools>Scheduled Tasks. - Locate each {Task Name} values listed above in the Name column.
- Right-click on the said file(s) with the aforementioned value.
- Click on Properties. In the Run field, check for the listed {Task to be run}.
- If the strings match the list above, delete the task.
For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:
- Open the Windows Task Scheduler. To do this:
• On Windows Vista, Windows 7, and Windows Server 2008, click Start, type taskschd.msc in the Search input field, then press Enter.
• On Windows 8, Windows 8.1, and Windows Server 2012, right-click on the lower left corner of the screen, click Run, type taskschd.msc, then press Enter. - In the left panel, click Task Scheduler Library.
- In the upper-middle panel, locate each {Task Name} values listed above in the Name column.
- In the lower-middle panel, click the Actions tab. In the Details column, check for the {Task to be run} string.
- If the said string is found, delete the task.
Step 5
Search and delete this file
- %User Profile%\Pictures\Minor Policy{random characters}.exe
- %Program Files%\PowerControl\PowerControl_Svc.exe
- %ProgramData%\DNTException\node.exe
- %Application Data%\Microsoft\Network\mstsca.exe\
- %System%\control.exe
- %User Temp%\M3A58X5S.cPl
- %User Temp%\IXP000.TMP\exdtrvxyznt.dat.5
- %User Temp%\IXP000.TMP\exdtrvxyznt.dat.6
- %User Temp%\IXP000.TMP\bbvdvmu.bat
- %User Temp%\IXP000.TMP\lhcrpixxvj.dat
- %User Temp%\IXP000.TMP\conhost.exe
- %User Profile%\Documents\KfSXhxpdcitP_l6.palma
- %AppDataLocal%\bowsakkdestx.txt
- %System Root%\SystemID\PersonalID.txt
- %ProgramData%\DNTException\node.lib
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as Trojan.Win32.PRIVATELOADER.AA. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 7
Restore encrypted files from backup.
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