Worm.Win32.Dorkbot_5b002bcbcf
Gen:Variant.Kazy.252142 (BitDefender), Worm:Win32/Dorkbot.I (Microsoft), HEUR:Trojan.Win32.Generic (Kaspersky), BackDoor.IRC.NgrBot.42 (DrWeb), Gen:Variant.Kazy.252142 (B) (Emsisoft), GenericATG-FJE!5B002BCBCFBE (McAfee), Trojan-Ransom.Win32.PornoAsset (Ikarus), Gen:Variant.Kazy.252142 (FSecure), Inject.BTAN (AVG), Win32:Vitro (Avast), TROJ_GEN.R021C0DAE14 (TrendMicro), Backdoor.Win32.Farfli.FD, Worm.Win32.Dorkbot.FD, mzpefinder_pcap_file.YR, WormDorkbot.YR, GenericUDPFlooder.YR, GenericIRCBot.YR, GenericMSNWorm.YR, GenericUSBInfector.YR, GenericDNSBlocker.YR, GenericDownloader.YR, GenericAutorunWorm.YR, GenericSYNFlooder.YR, GenericInjector.YR, BankerGeneric.YR, GenericProxy.YR, GenericPhysicalDrive0.YR (Lavasoft MAS)
Behaviour: Banker, Ransom, Trojan, Backdoor, Flooder, Worm, WormAutorun, IRCBot, MSNWorm, DNSBlocker, UDPFlooder, SYNFlooder, Trojan-Proxy, USBInfector
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
MD5: 5b002bcbcfbe316a99d93533e54a5b2a
SHA1: 5c874088ab9dc784a62e66e204c3e37da67e2add
SHA256: 9c29dea6c5272149549c5c960dce51ae301bf30898a7104f85f01efa72be5de2
SSDeep: 3072:6dO5KJFNxSvgMVUyUpMroDZmXOcbOOCAhHYuRb8NkjoxFn 7S3DWV:KrN6oyCMroDlAh41OjoxJ G3KV
Size: 180224 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2003-05-22 18:15:30
Analyzed on: WindowsXP SP3 32-bit
Summary:
Worm. A program that is primarily replicating on networks or removable drives.
Payload
| Behaviour | Description |
|---|---|
| WormAutorun | A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Worm's file once a user opens a drive's folder in Windows Explorer. |
| IRCBot | A bot can communicate with command and control servers via IRC channel. |
| MSNWorm | A worm can spread its copies through the MSN Messanger. |
| DNSBlocker | A program can block designated DNS servers for making it difficult for users to locate specific domains or web sites on the Internet. |
| UDPFlooder | This program can make a UDP flood. A UDP flood attack is a denial-of-service attack using the User Datagram Protocol (UDP). It can be initiated by sending a large number of UDP packets to random ports on a remote host. |
| SYNFlooder | This program can make a SYN flood. It is a form of denial-of-service attack in which an attacker sends a succession of SYN requests to a target's system in an attempt to consume enough server resources to make the system unresponsive to legitimate traffic. |
| Trojan-Proxy | This program can launch a proxy server (SOCKS4) on a designated TCP port. |
| USBInfector | A program can register a device notification with the help of RegisterDeviceNotification. So it is notified when a USB device is plugged and then the worm copies itself to the USB device plugged into the affected computer. |
Process activity
The Worm creates the following process(es):
No processes have been created.
The Worm injects its code into the following process(es):
No processes have been created.
File activity
No files have been created.
Registry activity
Network activity (URLs)
| URL | IP |
|---|---|
| hxxp://94.102.53.178/6542new7.exe (ET POLICY PE EXE or DLL Windows file download , Malicious) |  |
| hxxp://196.196.8.53/6542new7.exe (ET POLICY PE EXE or DLL Windows file download , Malicious) |  |
| hxxp://151.236.17.123/ |  |
| p.jaao20227.com |  60.169.81.236 |
| p.jo1aa27.com |  Unresolvable |
| a.aiphon1egalaxyblack42.com | Unresolvable |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
The Worm installs the following user-mode hooks in WININET.dll:
HttpSendRequestW
InternetWriteFile
HttpSendRequestA
The Worm installs the following user-mode hooks in dnsapi.dll:
DnsQuery_A
DnsQuery_W
The Worm installs the following user-mode hooks in WS2_32.dll:
send
GetAddrInfoW
The Worm installs the following user-mode hooks in kernel32.dll:
MoveFileA
CopyFileW
CopyFileA
MoveFileW
CreateFileW
CreateFileA
The Worm installs the following user-mode hooks in ntdll.dll:
LdrLoadDll
NtResumeThread
NtQueryDirectoryFile
NtEnumerateValueKey
Propagation
A worm can spread via removable drives. It writes its executable and creates "autorun.inf" scripts on all removable drives. The autorun script will execute the Worm's file once a user opens a drive's folder in Windows Explorer.
A program can register a device notification with the help of RegisterDeviceNotification. So it is notified when a USB device is plugged and then the worm copies itself to the USB device plugged into the affected computer.
A worm can spread its copies through the MSN Messanger.
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Scan a system with an anti-rootkit tool.
- Delete the original Worm file.
- Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
- Find and delete all copies of the worm's file together with "autorun.inf" scripts on removable drives.
- Reboot the computer.
*Manual removal may cause unexpected system behaviour and should be performed at your own risk.
