diff --git a/lib/core/progress.py b/lib/core/progress.py
index 0db932530..dfb13765a 100644
--- a/lib/core/progress.py
+++ b/lib/core/progress.py
@@ -8,6 +8,7 @@ See the file 'doc/COPYING' for copying permission
 from lib.core.common import getUnicode
 from lib.core.common import dataToStdout
 from lib.core.data import conf
+from lib.core.data import kb
 
 class ProgressBar(object):
     """
@@ -22,6 +23,7 @@ class ProgressBar(object):
         self._span = self._max - self._min
         self._width = totalWidth if totalWidth else conf.progressWidth
         self._amount = 0
+        self._times = []
         self.update()
 
     def _convertSeconds(self, value):
@@ -50,7 +52,7 @@ class ProgressBar(object):
         percentDone = int(percentDone)
 
         # Figure out how many hash bars the percentage should be
-        allFull = self._width - 2
+        allFull = self._width - len("100%% [] %s/%s  ETA 00:00" % (self._max, self._max))
         numHashes = (percentDone / 100.0) * allFull
         numHashes = int(round(numHashes))
 
@@ -67,6 +69,22 @@ class ProgressBar(object):
         percentString = getUnicode(percentDone) + "%"
         self._progBar = "%s %s" % (percentString, self._progBar)
 
+    def progress(self, deltaTime, newAmount, threads=1):
+        """
+        This method saves item delta time and shows updated progress bar with calculated eta
+        """
+
+        if len(self._times) <= ((self._max * 3) / 100) or newAmount == self._max:
+            eta = 0
+        else:
+            midTime = sum(self._times) / len(self._times)
+            midTimeWithLatest = (midTime + deltaTime) / 2
+            eta = midTimeWithLatest * (self._max - newAmount) / threads
+
+        self._times.append(deltaTime)
+        self.update(newAmount)
+        self.draw(eta)
+
     def draw(self, eta=0):
         """
         This method draws the progress bar if it has changed
@@ -78,8 +96,11 @@ class ProgressBar(object):
             if eta and self._amount < self._max:
                 dataToStdout("\r%s %d/%d  ETA %s" % (self._progBar, self._amount, self._max, self._convertSeconds(int(eta))))
             else:
-                blank = " " * (80 - len("\r%s %d/%d" % (self._progBar, self._amount, self._max)))
-                dataToStdout("\r%s %d/%d%s" % (self._progBar, self._amount, self._max, blank))
+                dataToStdout("\r%s\r" % (" " * (self._width - 1)))
+                if self._amount < self._max:
+                    dataToStdout("%s %d/%d" % (self._progBar, self._amount, self._max))
+                else:
+                    kb.prependFlag = False
 
     def __str__(self):
         """
diff --git a/lib/techniques/blind/inference.py b/lib/techniques/blind/inference.py
index 08b9ff45d..b0992d78a 100644
--- a/lib/techniques/blind/inference.py
+++ b/lib/techniques/blind/inference.py
@@ -140,7 +140,6 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
 
         if showEta:
             progress = ProgressBar(maxValue=length)
-            progressTime = []
 
         if timeBasedCompare and conf.threads > 1:
             warnMsg = "multi-threading is considered unsafe in time-based data retrieval. Going to switch it off automatically"
@@ -354,18 +353,6 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
 
                         return None
 
-        def etaProgressUpdate(charTime, index):
-            if len(progressTime) <= ((length * 3) / 100):
-                eta = 0
-            else:
-                midTime = sum(progressTime) / len(progressTime)
-                midTimeWithLatest = (midTime + charTime) / 2
-                eta = midTimeWithLatest * (length - index) / conf.threads
-
-            progressTime.append(charTime)
-            progress.update(index)
-            progress.draw(eta)
-
         # Go multi-threading (--threads > 1)
         if conf.threads > 1 and isinstance(length, int) and length > 1:
             threadData = getCurrentThreadData()
@@ -404,7 +391,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
 
                         if kb.threadContinue:
                             if showEta:
-                                etaProgressUpdate(time.time() - charStart, threadData.shared.index[0])
+                                progress.progress(time.time() - charStart, threadData.shared.index[0], numThreads)
                             elif conf.verbose >= 1:
                                 startCharIndex = 0
                                 endCharIndex = 0
@@ -496,7 +483,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
                         # Did we have luck?
                         if result:
                             if showEta:
-                                etaProgressUpdate(time.time() - charStart, len(commonValue))
+                                progress.progress(time.time() - charStart, len(commonValue))
                             elif conf.verbose in (1, 2) or hasattr(conf, "api"):
                                 dataToStdout(filterControlChars(commonValue[index - 1:]))
 
@@ -546,7 +533,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
                 partialValue += val
 
                 if showEta:
-                    etaProgressUpdate(time.time() - charStart, index)
+                    progress.progress(time.time() - charStart, index)
                 elif conf.verbose in (1, 2) or hasattr(conf, "api"):
                     dataToStdout(filterControlChars(val))
 
@@ -578,7 +565,7 @@ def bisection(payload, expression, length=None, charsetType=None, firstChar=None
         infoMsg = "\r[%s] [INFO] retrieved: %s  %s\n" % (time.strftime("%X"), filterControlChars(finalValue), " " * retrievedLength)
         dataToStdout(infoMsg)
     else:
-        if conf.verbose in (1, 2) or showEta and not hasattr(conf, "api"):
+        if conf.verbose in (1, 2) and not showEta and not hasattr(conf, "api"):
             dataToStdout("\n")
 
         if (conf.verbose in (1, 2) and showEta) or conf.verbose >= 3: